3-Month Algaecide


Use Extended Algae Control 3 Month Algaecide as an effective algae treatment to kill algae and prevent algae growth.  Extended Algae Control algaecide kills and prevents blue-green, black and mustard / yellow algae. Perfect for pools in hot, humid climates. Active ingredient: 11.8% Copper Sulphate Pentahydrate.

  • Single algaecide treatment lasts 3 months

  • Simple to use
  • Non-foaming

  • Non-staining (Note: Balance pool water before using Extended Algae Control)

Extended Algae Control Directions for Use

Every three months: 16 fl. oz. of Extended Control Algaecide per 10,000 gallons of pool water will prevent algae growth in all pool types.

Severe algae treatment: 32 fl. oz. Extended Control Algaecide per 10,000 gallons of pool water.

  1. Maintain pool water in the pH range 7.2 to 7.8 with total alkalinity at 80 - 120 ppm.  Adjust pH to 7.2 for severe algae.
  2. Ensure that your pool's filtration system is working properly.

  3. Brush your swimming pool regularly.

  4. Calculate the volume of Extended Algae Control required for your pool.

  5. Add Extended Algae Control 3 Month Algaecide direclty to the pool's deep end, preferably in front of the water return.  Dilute in a bucket of pool water when adding to pools with plaster finishes.

Extended Control Algaecide must be used along with adequate levels of an EPA-registered sanitizer (e.g. chlorine) to control bacteria.

ItemSizeProduct NumberPrice
Premium Dichloro 2 lbsSun$ 14.99
Premium Dichloro 5 lbsSun$ 29.99
Premium Dichloro5 lbsMaintain$ 29.99
Premium Dichloro 8 lbsSun$ 46.99
Premium Dichloro9 lbsMaintain$ 49.99
Premium Dichloro25 lbsSun$129.99
Premium 3 in Chlorine Tabs4.375 lbsMaintain$ 24.99
Premium 3 in Chlorine Tabs 5 lbsSun$ 26.99
Premium 3 in Chlorine Tabs7 lbs Maintain$ 36.99
Premium 3 in Chlorine Tabs10 lbsSun$ 49.99
Premium 3 in Chlorine Tabs25 lbsSun$109.99
Premium 1 In Tabs 5 lbsSun$ 29.99
Premium 1 In Tabs10 lbsSun$ 52.99
Premium 1 In Tabs25 lbsSun$114.99
Super 70 3 In Tabs15 lbsSun$ 59.99
Bromine Tablets1.5 lbsSun$ 16.99
Bromine Tablets3 lbsSun$ 29.99
Bromine Tablets25 lbsSun$114.99
Breakout Shock 1 lb BagOmni$ 5.99
Cal Hypo Shock1 lb BagMaintain$ 6.99
Cal Hypo ShockCase (12) 1 lb BagsMaintain$69.99
Multi Purpose Shock1 lb BagMaintain$ 6.99
Swimming Pool Discounters Start2.0 lbsMaintain$15.99
AlgaeShieldQuartEarth Science Labs$ 29.99
3 Mt AlgaecideQuartSun$ 22.99
Concentrate 50%QuartSun$ 19.99
Green Klear/CopperQuartSun$ 21.99
Trouble Free AlgaecideQuartSun$ 20.99
Summertime AlgaecideQuartSun$ 12.99
Ph Up 2 lbsSun$ 9.99
Ph Up 5 lbsSun$ 12.99
Ph Up10 lbsSun$ 24.99
Ph Down Pool & Spa1 lb
Ph Down 3 lbsSun $ 10.99
Ph Down 6 lbsSun$ 19.99
Alkalinity Up 5 lbsSun$ 14.99
Alkalinity Up10 lbsSun$ 24.99
Calcium Plus7 lbs Maintain$ 14.99
Chlorine Stabilizer1.5 lbsMaintain$ 16.99
Super ClairifierQuartSun$ 16.99
Eco Clear (All Pools)QuartMillennium$22.50
Pool Blue (ALL Pools)QuartSpec$22.50
Natural Clairifer (All Pools)QuartSun$ 22.99
Drop Down FlocculentQuartSun$ 16.99
Phosphate RemoverQuartSun$ 29.99
Super Metal ControlQuartSun$ 16.99
Heat TrapperQuartSun$12.99
Stain Gone 2 lbsSun$ 19.99
30 Day CubeBoxSpec$ 8.99
4 Mt AlgaecideQuartSpec$ 23.50
Phosphate 3000QuartSpec$ 24.50
Multi Stain RemoverBucketSpec$ 36.50
Stain Out2 lbsPhoenix$ 19.99
Stabilizer1.75 lbsQuantum$ 16.99
Ultra Swim Shock 2 lbsQuantum$ 16.99
SkillitQuartBio-Dex$ 24.50
Alum 6 lbsBio-Dex$ 23.50
Phosphate RemoverQuartBio-Dex$ 36.50
Spray Cartridge CleanerQuartBio-Dex$ 19.99
11% Copper AlgaecideQuartMaintain$21.99
30% Non Foaming AlgaecideQuartMaintain$ 21.99
60% Non Foaming AlgaecideQuartMaintain$ 26.99
10% Quat AlgaecideQuartMaintain$ 12.99
50% Quat AlgaecideQuartMaintain$ 19.99
Super ClarifierQuartMaintain$ 12.99
Phophate RemoverQuartMaintain$ 26.99
Q-Zyme Pool & SpaPintQuantum$9.99
Bio ClearQuartMillennium$26.99
Synergy KitLarge BoxOmni$ 139.99
Synergy KitSmall BoxOmni$ 79.99
Synergy Tabs4.5 lbsOmni$ 36.99
Synergy Initiator12.5 lbsOmni$ 39.99
Synergy Clear1 lb BagOmni$ 6.99
SynergyTest KitOmni$ 24.99
Hth Granular Chlorine(1) 50 lbs Drum 50#Arch$ 64.99
Hth Granular Chlorine(2) 50 lbs Drums 100#Arch$119.99
Hth Granular Chlorine(4) 50 lbs Drums 200#Arch$219.99

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