Only
$149.99
Only
$149.99

Coral Seas YO-20 Yellow Out Chlorinating Compound, 20 lb

In stock
Only %1 left
Brand
Coral Seas
MPN
YO-20
SKU
2166
  • Ships as (1) 20 lb bucket
  • A chemical breakthrough in cleanup results when used prior to shock treatment with an EPA-Registered chlorinating compound that kills green or mustard algae.
  • Not affected by high levels of cyanuric acid and works well with salt chlorine generators!
  • NO metals added – can be used with ALL pool surfaces!
  • Dosage: 2 lb per 15,000 gallons of pool water.
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This item will arrive in two business days for orders placed by with the exception of for the Texas warehouse.
Ground Delivery Ground
Your package will ship via FedEx Ground service and ships same day or within 24 hours
2-Day Delivery 2-Day
This item will arrive in two business days for orders placed by with the exception of for the Texas warehouse.
Ground Delivery Ground
Your package will ship via FedEx Ground service and ships same day or within 24 hours
2-Day Delivery 2-Day
This item will arrive in two business days for orders placed by with the exception of for the Texas warehouse.
Ground Delivery Ground
Your package will ship via FedEx Ground service and ships same day or within 24 hours
2-Day Delivery 2-Day
This item will arrive in two business days for orders placed by with the exception of for the Texas warehouse.
Ground Delivery Ground
Your package will ship via FedEx Ground service and ships same day or within 24 hours
2-Day Delivery 2-Day
This item will arrive in two business days for orders placed by with the exception of for the Texas warehouse.
Ground Delivery Ground
Your package will ship via FedEx Ground service and ships same day or within 24 hours
Only
$149.99

Achieves algae clean-up quickly and economically, from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out can also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

Current Product
Coral Seas YO-20 Yellow Out Chlorinating Compound, 20 lb
Current Product
Coral Seas YO-2 Yellow Out Chlorinating Compound, 2 lb
Coral Seas 17642COR Green Aid, 2 lb
Doheny's Super Algaecide Plus, 1 Quart + 8 Fluid Ounces FREE
SeaKlear SKA-B-Q Algae Prevention & Remover, 1 Quart
Doheny's Extreme Algae Killing Bundle with Doheny's Super Shock, Natural Chemistry Pool First Aid, and Green Aid all for your 15,000 gallon pool.
United Chemical YT-C12 Yellow Treat 2 lb
Current Product
Coral Seas YO-2 Yellow Out Chlorinating Compound, 8 lb
Coral Seas 17642COR Green Aid, 8 lb
Four 1 Quart Bottles of Doheny's Super Algaecide Plus
Out of stock
SeaKlear SKA-B-Q Algae Prevention & Remover, 4 Quart
Doheny's Extreme Algae Killing Bundle with Doheny's Super Shock, Natural Chemistry Pool First Aid, and Coral Seas Green Aid all for your 30,000 gallon pool.
United Chemical YT-C12 Yellow Treat 4 lb
Current Product
Coral Seas YO-20 Yellow Out Chlorinating Compound, 20 lb
Coral Seas 17642COR Green Aid, 8 lb
Doheny's Super Algaecide Plus, 12 Quarts + 96 Fluid Ounces FREE
Doheny's Extreme Algae Killing Bundle with Doheny's Super Shock, Natural Chemistry Pool First Aid, and Coral Seas Green Aid all for your 30,000 gallon pool.
United Chemical YT-C12 Yellow Treat 4 lb
SeaKlear SKA-B-Q Algae Prevention & Remover, 12 Quart
Current Product
Coral Seas YO-4 Yellow Out Chlorinating Compound, 4 lb
Four 1 Quart Bottles of Doheny's Super Algaecide Plus
Out of stock
SeaKlear SKA-B-Q Algae Prevention & Remover, 4 Quart
Doheny's Extreme Algae Killing Bundle with Doheny's Super Shock, Natural Chemistry Pool First Aid, and Coral Seas Green Aid all for your 30,000 gallon pool.
Coral Seas 17642COR Green Aid, 4 lb
United Chemical YT-C12 Yellow Treat 4 lb
Coral Seas YO-20 Yellow Out Chlorinating Compound, 20 lb Coral Seas YO-2 Yellow Out Chlorinating Compound, 2 lb Coral Seas 17642COR Green Aid, 2 lb Doheny's Super Algaecide Plus, 1 Quart + 8 Fluid Ounces FREE SeaKlear SKA-B-Q Algae Prevention & Remover, 1 Quart Doheny's Extreme Algae Killing Bundle, 15,000 gal United Chemical YT-C12 Yellow Treat 2 lb Coral Seas YO-2 Yellow Out Chlorinating Compound, 8 lb Coral Seas 17642COR Green Aid, 8 lb Doheny's Super Algaecide Plus, 4 Quarts + 32 Fluid Ounces FREE SeaKlear SKA-B-Q Algae Prevention & Remover, 4 Quart Doheny's Extreme Algae Killing Bundle, 30,000 gal United Chemical YT-C12 Yellow Treat 4 lb Coral Seas YO-20 Yellow Out Chlorinating Compound, 20 lb Coral Seas 17642COR Green Aid, 8 lb Doheny's Super Algaecide Plus, 12 Quarts + 96 Fluid Ounces FREE Doheny's Extreme Algae Killing Bundle, 30,000 gal United Chemical YT-C12 Yellow Treat 4 lb SeaKlear SKA-B-Q Algae Prevention & Remover, 12 Quart Coral Seas YO-4 Yellow Out Chlorinating Compound, 4 lb Doheny's Super Algaecide Plus, 4 Quarts + 32 Fluid Ounces FREE SeaKlear SKA-B-Q Algae Prevention & Remover, 4 Quart Doheny's Extreme Algae Killing Bundle, 30,000 gal Coral Seas 17642COR Green Aid, 4 lb United Chemical YT-C12 Yellow Treat 4 lb
Price
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$149.99
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$24.99
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$24.99
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$19.16
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$39.99
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$69.99
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$69.99
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$87.99
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$59.99
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$33.98
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$149.99
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$69.99
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$188.96
Was $209.96
Special Deal
$59.99
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$33.98
Was $39.98
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$229.99
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$38.99
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$87.99
Special Deal
$59.99
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$38.99
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$33.98
Was $39.98
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Primary Brand
Coral Seas
Coral Seas
Coral Seas
Doheny's
SeaKlear
Doheny's
United Chemical
Coral Seas
Coral Seas
Doheny's
SeaKlear
Doheny's
United Chemical
Coral Seas
Coral Seas
Doheny's
Doheny's
United Chemical
SeaKlear
Coral Seas
Doheny's
SeaKlear
Doheny's
Coral Seas
United Chemical
Short Description
  • Ships as (1) 20 lb bucket
  • Ships as (1) 2 lb bottle
  • Ships as (1) 2 lb bottle
  • Ships as (1) 40 fl oz bottle
  • Ships as (1) 1 Quart bottle
  • Treats up to 15,000 gallons
  • Ships as (1) 2 lb bottle
  • Ships as (4) 2 lb bottles
  • Ships as (4) 2 lb bottles
  • Arrives in 4 40-fluid ounce bottles
  • Ships as (4) 1 quart bottles
  • Treats up to 30,000 gallons
  • Ships as (2) 2 lb bottles
  • Ships as (1) 20 lb bucket
  • Ships as (4) 2 lb bottles
  • Ships as (12) 40 fl oz bottles
  • Treats up to 30,000 gallons
  • Ships as (2) 2 lb bottles
  • Ships as (12) 1 quart bottles
  • Ships as (2) 2 lb bottles
  • Arrives in 4 40-fluid ounce bottles
  • Ships as (4) 1 quart bottles
  • Treats up to 30,000 gallons
  • Ships as (2) 2 lb bottles
  • Ships as (2) 2 lb bottles
Description

Achieves algae clean-up quickly and economically, from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out can also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

Achieves algae clean-up quickly and economically, from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out can also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

SAFELY TURN YOUR POOL FROM GREEN AID IN LESS THAN 24 HOURS!

Starts working on algae instantly! Fast cleanup of green, mustard, brown or pink algae in just six steps. Green Aid enhances the power of chlorine when used after chlorine-based shock treatments. Safe for all pool surfaces. Scrub-free and leaves no metal residue behind that may stain your pool surface. Never premix Green Aid with chlorine or any other chemicals.

Add Green Aid to your pool, wait five minutes and then add chlorine-based shock to your pool. Watch your pool turn from green to clean! Also works great with salt water generation systems. Recommended dosage: 2 lb/15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Note: the pH should be equal to 7.8 or higher.

Do you struggle with pool algae every summer? Pool algae is no match for Super Algaecide Plus from Doheny's! Its powerful formula of chelated copper kills all common algae growth: stubborn green, black algae, and even kills persistent yellow mustard algae. Our brand of algaecide will not foam or cloud your swimming pool water and is effective in all parts of the country.

Not convinced that Super Algaecide Plus is the right product for your pool algae problems? Read a few customer reviews below to find out why Super Algaecide Plus is a best-seller or give us a call to discuss your algaecide needs with a cool pool pro at 1.800.574.7665.

Rely on Sea Klear to keep your pool clear and sparkling.

Formulated with an extremely effective and economical low-dose organic copper complex that kills and prevents all types of algae including blue-green, black and mustard algae. Each application lasts up to 90 days.

We have paired up Doheny’s Super Shock, Green to Clean and Natural Chemistry’s Pool First Aid and created bundles which provide outstanding results for your pool’s most extreme algae problem, check out the video online. Note: for best results balance the pH level to 7.8 ppm.

Bundle 15,000 gal: Treats up to 15,000 gal. and includes 2 lb Doheny’s Super Shock, 2 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.
Bundle 30,000 gal: Treats up to 30,000 gal. and include: 4 lb Doheny’s Super Shock, 4 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.

1. Add Green to Clean, then add Doheny’s Super Shock. Let the pump run for 24 hours and see the incredible results!
2. After 24 hours add Natural Chemistry’s Pool First Aid to eliminate the residual algae as well as ridding the pool of any waterling ring.

THE BEST AND MOST TRUSTED YELLOW ALGAE REMOVAL PRODUCT!

Yellow and mustard algae grow fast – especially when the weather gets warm and your chlorine begins to burn fast. It can appear on your pool walls and steps – seemingly out of nowhere. We have the solution! Yellow Treat is the first patented, sodium bromide-based algaecide to EPA registered. It’s powerful formula and ease of use has made it the number one choice of pool professionals for almost 40 years. Using Yellow Treat is not just powerful, it is also easy to use! Just add one capful per 10,000 gallons of pool water, brush affected areas, then shock your pool.

  • EPA registered Patented formula specifically designed to kill mustard algae.
  • Doesn’t contain copper or silver so it won’t leave stains.
  • Doesn’t contain ammonia so won’t create chloramines that require further shocking.
  • Non-toxic formula that’s safe for swimmers and pets that drink pool water.

It is a violation of federal law to use this product in a manner inconsistent with labeling. Always add Yellow Treat directly to pool or spa.

  • For swimming pools, add 5 ounces (one level capful) of Yellow Treat per 10,000 gallons by broadcasting directly onto pool water surface. For spas, add the equivalent of 1/4 ounce per 500 gallons by broadcasting directly onto pool water surface.
  • Brush pool or spa.
  • Independent of chlorine level, immediately add liquid or dry chlorinating product for super-chlorination. Use the recommended dosage rate for superchlorination from an EPA registered chlorinating product.
  • Before swimming, use test kit for measuring chlorine level, as directed on your chlorinating product label. Do not enter the water or swim until the chlorine residual drops to 3 ppm.
  • To prevent the reoccurance of yellow and mustard algae and maintain crystal clear water, No Mor Problems may be used in conjunction with chlorinating and brominating products. Follow the directions for use for No Mor Problems and maintain the chlorine or bromine level recommended on your chlorinating or brominating product.

Achieves algae clean-up quickly and economically, from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out can also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

SAFELY TURN YOUR POOL FROM GREEN AID IN LESS THAN 24 HOURS!

Starts working on algae instantly! Fast cleanup of green, mustard, brown or pink algae in just six steps. Green Aid enhances the power of chlorine when used after chlorine-based shock treatments. Safe for all pool surfaces. Scrub-free and leaves no metal residue behind that may stain your pool surface. Never premix Green Aid with chlorine or any other chemicals.

Add Green Aid to your pool, wait five minutes and then add chlorine-based shock to your pool. Watch your pool turn from green to clean! Also works great with salt water generation systems. Recommended dosage: 2 lb/15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Note: the pH should be equal to 7.8 or higher.

Do you struggle with pool algae every summer? Pool algae is no match for Super Algaecide Plus from Doheny's! Its powerful formula of chelated copper kills all common algae growth: stubborn green, black algae, and even kills persistent yellow mustard algae. Our brand of algaecide will not foam or cloud your swimming pool water and is effective in all parts of the country.

Not convinced that Super Algaecide Plus is the right product for your pool algae problems? Read a few customer reviews below to find out why Super Algaecide Plus is a best-seller or give us a call to discuss your algaecide needs with a cool pool pro at 1.800.574.7665.

Rely on Sea Klear to keep your pool clear and sparkling.

Formulated with an extremely effective and economical low-dose organic copper complex that kills and prevents all types of algae including blue-green, black and mustard algae. Each application lasts up to 90 days.

We have paired up Doheny’s Super Shock, Green to Clean and Natural Chemistry’s Pool First Aid and created bundles which provide outstanding results for your pool’s most extreme algae problem, check out the video online. Note: for best results balance the pH level to 7.8 ppm.

Bundle 15,000 gal: Treats up to 15,000 gal. and includes 2 lb Doheny’s Super Shock, 2 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.
Bundle 30,000 gal: Treats up to 30,000 gal. and include: 4 lb Doheny’s Super Shock, 4 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.

1. Add Green to Clean, then add Doheny’s Super Shock. Let the pump run for 24 hours and see the incredible results!
2. After 24 hours add Natural Chemistry’s Pool First Aid to eliminate the residual algae as well as ridding the pool of any waterling ring.

THE BEST AND MOST TRUSTED YELLOW ALGAE REMOVAL PRODUCT!

Yellow and mustard algae grow fast – especially when the weather gets warm and your chlorine begins to burn fast. It can appear on your pool walls and steps – seemingly out of nowhere. We have the solution! Yellow Treat is the first patented, sodium bromide-based algaecide to EPA registered. It’s powerful formula and ease of use has made it the number one choice of pool professionals for almost 40 years. Using Yellow Treat is not just powerful, it is also easy to use! Just add one capful per 10,000 gallons of pool water, brush affected areas, then shock your pool.

  • EPA registered Patented formula specifically designed to kill mustard algae.
  • Doesn’t contain copper or silver so it won’t leave stains.
  • Doesn’t contain ammonia so won’t create chloramines that require further shocking.
  • Non-toxic formula that’s safe for swimmers and pets that drink pool water.

It is a violation of federal law to use this product in a manner inconsistent with labeling. Always add Yellow Treat directly to pool or spa.

  • For swimming pools, add 5 ounces (one level capful) of Yellow Treat per 10,000 gallons by broadcasting directly onto pool water surface. For spas, add the equivalent of 1/4 ounce per 500 gallons by broadcasting directly onto pool water surface.
  • Brush pool or spa.
  • Independent of chlorine level, immediately add liquid or dry chlorinating product for super-chlorination. Use the recommended dosage rate for superchlorination from an EPA registered chlorinating product.
  • Before swimming, use test kit for measuring chlorine level, as directed on your chlorinating product label. Do not enter the water or swim until the chlorine residual drops to 3 ppm.
  • To prevent the reoccurance of yellow and mustard algae and maintain crystal clear water, No Mor Problems may be used in conjunction with chlorinating and brominating products. Follow the directions for use for No Mor Problems and maintain the chlorine or bromine level recommended on your chlorinating or brominating product.

Achieves algae clean-up quickly and economically, from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out can also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

SAFELY TURN YOUR POOL FROM GREEN AID IN LESS THAN 24 HOURS!

Starts working on algae instantly! Fast cleanup of green, mustard, brown or pink algae in just six steps. Green Aid enhances the power of chlorine when used after chlorine-based shock treatments. Safe for all pool surfaces. Scrub-free and leaves no metal residue behind that may stain your pool surface. Never premix Green Aid with chlorine or any other chemicals.

Add Green Aid to your pool, wait five minutes and then add chlorine-based shock to your pool. Watch your pool turn from green to clean! Also works great with salt water generation systems. Recommended dosage: 2 lb/15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Note: the pH should be equal to 7.8 or higher.

Do you struggle with pool algae every summer? Pool algae is no match for Super Algaecide Plus from Doheny's! Its powerful formula of chelated copper kills all common algae growth: stubborn green, black algae, and even kills persistent yellow mustard algae. Our brand of algaecide will not foam or cloud your swimming pool water and is effective in all parts of the country.

Not convinced that Super Algaecide Plus is the right product for your pool algae problems? Read a few customer reviews below to find out why Super Algaecide Plus is a best-seller or give us a call to discuss your algaecide needs with a cool pool pro at 1.800.574.7665.

We have paired up Doheny’s Super Shock, Green to Clean and Natural Chemistry’s Pool First Aid and created bundles which provide outstanding results for your pool’s most extreme algae problem, check out the video online. Note: for best results balance the pH level to 7.8 ppm.

Bundle 15,000 gal: Treats up to 15,000 gal. and includes 2 lb Doheny’s Super Shock, 2 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.
Bundle 30,000 gal: Treats up to 30,000 gal. and include: 4 lb Doheny’s Super Shock, 4 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.

1. Add Green to Clean, then add Doheny’s Super Shock. Let the pump run for 24 hours and see the incredible results!
2. After 24 hours add Natural Chemistry’s Pool First Aid to eliminate the residual algae as well as ridding the pool of any waterling ring.

THE BEST AND MOST TRUSTED YELLOW ALGAE REMOVAL PRODUCT!

Yellow and mustard algae grow fast – especially when the weather gets warm and your chlorine begins to burn fast. It can appear on your pool walls and steps – seemingly out of nowhere. We have the solution! Yellow Treat is the first patented, sodium bromide-based algaecide to EPA registered. It’s powerful formula and ease of use has made it the number one choice of pool professionals for almost 40 years. Using Yellow Treat is not just powerful, it is also easy to use! Just add one capful per 10,000 gallons of pool water, brush affected areas, then shock your pool.

  • EPA registered Patented formula specifically designed to kill mustard algae.
  • Doesn’t contain copper or silver so it won’t leave stains.
  • Doesn’t contain ammonia so won’t create chloramines that require further shocking.
  • Non-toxic formula that’s safe for swimmers and pets that drink pool water.

It is a violation of federal law to use this product in a manner inconsistent with labeling. Always add Yellow Treat directly to pool or spa.

  • For swimming pools, add 5 ounces (one level capful) of Yellow Treat per 10,000 gallons by broadcasting directly onto pool water surface. For spas, add the equivalent of 1/4 ounce per 500 gallons by broadcasting directly onto pool water surface.
  • Brush pool or spa.
  • Independent of chlorine level, immediately add liquid or dry chlorinating product for super-chlorination. Use the recommended dosage rate for superchlorination from an EPA registered chlorinating product.
  • Before swimming, use test kit for measuring chlorine level, as directed on your chlorinating product label. Do not enter the water or swim until the chlorine residual drops to 3 ppm.
  • To prevent the reoccurance of yellow and mustard algae and maintain crystal clear water, No Mor Problems may be used in conjunction with chlorinating and brominating products. Follow the directions for use for No Mor Problems and maintain the chlorine or bromine level recommended on your chlorinating or brominating product.

Rely on Sea Klear to keep your pool clear and sparkling.

Formulated with an extremely effective and economical low-dose organic copper complex that kills and prevents all types of algae including blue-green, black and mustard algae. Each application lasts up to 90 days.

Coral Seas Yellow Out gets rid of algae, making pool cleaning fast. Go from green to clean in 24 hours with no brushing. Guaranteed! Regular use of Yellow Out also help reduce algaecide use that can stain pool surfaces.

Recommended dosage: 2 lbs. per 15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding. Yellow Out should never be pre-mixed with chlorine or other chemicals, nor should it be added directly into skimmer basket or filter suction line. Compatible with salt generators.

Do you struggle with pool algae every summer? Pool algae is no match for Super Algaecide Plus from Doheny's! Its powerful formula of chelated copper kills all common algae growth: stubborn green, black algae, and even kills persistent yellow mustard algae. Our brand of algaecide will not foam or cloud your swimming pool water and is effective in all parts of the country.

Not convinced that Super Algaecide Plus is the right product for your pool algae problems? Read a few customer reviews below to find out why Super Algaecide Plus is a best-seller or give us a call to discuss your algaecide needs with a cool pool pro at 1.800.574.7665.

Rely on Sea Klear to keep your pool clear and sparkling.

Formulated with an extremely effective and economical low-dose organic copper complex that kills and prevents all types of algae including blue-green, black and mustard algae. Each application lasts up to 90 days.

We have paired up Doheny’s Super Shock, Green to Clean and Natural Chemistry’s Pool First Aid and created bundles which provide outstanding results for your pool’s most extreme algae problem, check out the video online. Note: for best results balance the pH level to 7.8 ppm.

Bundle 15,000 gal: Treats up to 15,000 gal. and includes 2 lb Doheny’s Super Shock, 2 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.
Bundle 30,000 gal: Treats up to 30,000 gal. and include: 4 lb Doheny’s Super Shock, 4 lb Green to Clean, and 2 L Natural Chemistry’s Pool First Aid.

1. Add Green to Clean, then add Doheny’s Super Shock. Let the pump run for 24 hours and see the incredible results!
2. After 24 hours add Natural Chemistry’s Pool First Aid to eliminate the residual algae as well as ridding the pool of any waterling ring.

SAFELY TURN YOUR POOL FROM GREEN AID IN LESS THAN 24 HOURS!

Starts working on algae instantly! Fast cleanup of green, mustard, brown or pink algae in just six steps. Green Aid enhances the power of chlorine when used after chlorine-based shock treatments. Safe for all pool surfaces. Scrub-free and leaves no metal residue behind that may stain your pool surface. Never premix Green Aid with chlorine or any other chemicals.

Add Green Aid to your pool, wait five minutes and then add chlorine-based shock to your pool. Watch your pool turn from green to clean! Also works great with salt water generation systems.

Recommended dosage: 2 lb/15,000 gallons of water, concentrating on problem areas. Run filter continuously for 24 hours after adding.

Note: the pH should be equal to 7.8 or higher.

THE BEST AND MOST TRUSTED YELLOW ALGAE REMOVAL PRODUCT!

Yellow and mustard algae grow fast – especially when the weather gets warm and your chlorine begins to burn fast. It can appear on your pool walls and steps – seemingly out of nowhere. We have the solution! Yellow Treat is the first patented, sodium bromide-based algaecide to EPA registered. It’s powerful formula and ease of use has made it the number one choice of pool professionals for almost 40 years. Using Yellow Treat is not just powerful, it is also easy to use! Just add one capful per 10,000 gallons of pool water, brush affected areas, then shock your pool.

  • EPA registered Patented formula specifically designed to kill mustard algae.
  • Doesn’t contain copper or silver so it won’t leave stains.
  • Doesn’t contain ammonia so won’t create chloramines that require further shocking.
  • Non-toxic formula that’s safe for swimmers and pets that drink pool water.

It is a violation of federal law to use this product in a manner inconsistent with labeling. Always add Yellow Treat directly to pool or spa.

  • For swimming pools, add 5 ounces (one level capful) of Yellow Treat per 10,000 gallons by broadcasting directly onto pool water surface. For spas, add the equivalent of 1/4 ounce per 500 gallons by broadcasting directly onto pool water surface.
  • Brush pool or spa.
  • Independent of chlorine level, immediately add liquid or dry chlorinating product for super-chlorination. Use the recommended dosage rate for superchlorination from an EPA registered chlorinating product.
  • Before swimming, use test kit for measuring chlorine level, as directed on your chlorinating product label. Do not enter the water or swim until the chlorine residual drops to 3 ppm.
  • To prevent the reoccurance of yellow and mustard algae and maintain crystal clear water, No Mor Problems may be used in conjunction with chlorinating and brominating products. Follow the directions for use for No Mor Problems and maintain the chlorine or bromine level recommended on your chlorinating or brominating product.

Yellow Out is a fast and economical alternative to harmful pool chemicals, getting rid of pool algae fast when used with chlorine.

Yellow Out offers the following advantages:

  • Fast acting
  • No brushing required
  • Dissolves immediately
  • No copper or silver
  • Safe in any gunite, vinyl, plaster or fiberglass pool
  • Results are guaranteed (US Patent #4,614

Item # 2165P