• DryTec Calcium Hypochlorite Chlorinating Shock Treatment for Swimming Pools, 1-Pound (Pack of 24)

    HOW TO USE: Use entire contents of bag when opened. If any granules settle to the bottom of the pool use brush to disperse. Add the recommended dosage of this product during evening hours while the filter pump is running. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. If any granules settle to the bottom of the pool use brush to disperse. WATER BALANCE: For best product performance, swimmer comfort, and crystal clear water: Maintain pH in the range of 7.2 to 7.6. Maintain total alkalinity in the range of 60 to 120 parts per million (ppm). Maintain calcium hardness above 200 ppm. Use a reliable test kit that measures all these ranges. Use our pool care products to make adjustments. Follow label directions for each product. Do not enter pool until the free available chlorine residual is 1-4 ppm for each of the below noted water treatment applications. OPENING YOUR POOL: For best results, see the “WATER BALANCE” section above before treatment. Always adjust and maintain pH in the 7.2 to 7.6 range. Follow “SHOCK TREATMENT” directions on this package. Allow 30 minutes for product to disperse. Test free available chlorine residual with a pool test kit. Repeat treatment as needed. ROUTINE CHLORINATION: For be...

    • Brand: DryTec
    • ASIN: B00BGNLUV8
    • UPC: 731872555526

  • In The Swim Chlorine Pool Shock - 24 X 1 lb. bags

    This powerful chlorinated shock treatment is great for Spring start-up and ideal for a quick chlorine boost when fast-action is needed! 68% Calcium Hypochlorite. Compare to Sock It, Burn Out, Super-Chlorinator and Power Powder. Weekly Dosage: 1 lb. per 10,000 gallons. Dilute with water before before evenly broadcasting in to swimming pool water.

    • Brand: In The Swim
    • ASIN: B003BPNHV0
    • UPC: 792439324788

  • Zappit 73% Cal Hypo Pool Shock - Calcium Hypochlorite Super Shock 50lb

    The Zappit 73 Pool Shock is 73% Calcium Hypochlorite with 70% available chlorine. This granular formula comes in a bucket and saves you time and money by quickly dissolving to destroy waste, algae, and bacteria in your swimming pool. This powerful shock treatment is great for spring start up, gives a quick chlorine boost, and helps to balance your pool water chemistry. One pound treats 16,500 gallons of pool water. Use the Zappit 73 Shock Treatment in your swimming pool for more fresh and clear pool water. 1 50 lbs bucket.

    • Brand: Zapp It
    • ASIN: B01F44CVMQ
    • UPC: 088625841451

  • In The Swim Chlorine Pool Shock - 12 X 1 lb. bags

    This powerful chlorinated shock treatment is great for Spring start-up and ideal for a quick chlorine boost when fast-action is needed! 68% Calcium Hypochlorite. Compare to Sock It, Burn Out, Super-Chlorinator and Power Powder. Weekly Dosage: 1 lb. per 10,000 gallons. Dilute with water before before evenly broadcasting in to swimming pool water.

    • Brand: In The Swim
    • ASIN: B002WKQ3IE

  • Swim Best Chlorine Pool Shock - 12 x 1 lb Bags (12)

    Full strength, multi-purpose calcium hypochlorite granular provides economical chlorination for swimming pools. Use for shocking and algae control.

    • Brand: Swim Best
    • ASIN: B073ZK7CLR

  • Rx Clear 68% Calcium Hypochlorite Super Chlorine Swimming Pool Shock - 6 x 1 lb Bags

    Super Shock's 68% Calcium Hypochlorite formula works similarly to Sock-It, however Super Shock does not run the risk of bleaching vinyl pool liners. This allows for Super Shock to be evenly broadcast over your pool's surface. Apply at night at the rate of 1 bag per 10,000 gallons. For green water add 3 bags per 10,000 gallons.

    • Brand: Rx Clear
    • ASIN: B00SK2YP8I

  • CLOROX Pool&Spa Shock Xtra Blue, 6-Pound 33006CLX

    Clorox Pool&Spa Shock XtraBlue will shock, oxidize, buffer and clarify your pool's water. It also kills bacteria and contains blue algae killing crystals. With the easy pour bottle, use what you need and close the bottle until the next application.

    • Brand: CLOROX Pool&Spa
    • ASIN: B00PZZFJK6
    • UPC: 810821021623

  • HTH Pool Shock Super Shock Treatment 4-in-1 12 count (52016)

    hth is here to help with our 4-step pool care and 3-step care program. Our 4-step color-coded system makes it easy to find the hth pool care products you need to enjoy sparkling, blue water all season. Our complete line of hth spa products ensures that you have crystal clear water so you can relax in your spa all year round. If you enjoy hth, check out other products from Lonza such as Leisure Time, Applier Biochemist, Poolife, and GTC.

    • Brand: HTH
    • ASIN: B07895QQ3L
    • UPC: 073187520166

  • Rx Clear 73% Calcium Hypochlorite Mega Chlorine Swimming Pool Shock (48 Pack)

    A powerful, highly dense chlorinated shock treatment that will remove the green algae from your swimming pool water by just following the recommended dosage of this product. Be sure to pre-dissolve this powdered substance in a bucket of water before dispensing it around the perimeter of your swimming pool while your pump is running.

    • Color: 48 Pack
    • Brand: Rx Clear
    • ASIN: B073S9SD4P
    • UPC: 635963662035

  • Swim Best Chlorine Pool Shock - 24 x 1 lb Bags (24) Full Strength, Multi-Purpose Calcium Hypochlorite granular Provides economical Chlorination for Swimming Pools. Use for Shocking and Algae Control

    Full strength, multi-purpose calcium hypochlorite granular provides economical chlorination for swimming pools. Use for shocking and algae control.

    • Brand: Swim Best
    • ASIN: B073ZJLQPL
    • UPC: 758293066677

  • Clorox Pool&Spa Shock Xtra Blue, 12-Pound 33012CLX

    Clorox Pool&Spa shock Xtra blue will shock, oxidize, buffer and clarify your pool's water. It also kills bacteria and contains blue algae killing crystals. With the easy pour bottle, use what you need and close the bottle until the next application.

    • Brand: Clorox
    • ASIN: B00PZZFJN8
    • UPC: 810821021630

  • Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Slow Dissolving and UV Protected

    Compared to Pace, Bioguard and Sun the Rx Clear brand provides the same performance at a much lower cost.Item Details:13 pound bucket of granular chlorineRx Clear granular chlorine is 99% sodium DichlorDichlor resists UV light, lasting longer than other types of chlorinepH neutral, saving time and money on corrective chemicalsIt is 100% soluble-- Can be added directly to skimmer with no calcium residue1 oz treats 5,000 gallons daily

    • Brand: Rx Clear
    • ASIN: B00OM8E7NC
    • UPC: 078399252508

  • In The Swim Cal-Chlor Pool Chlorine Granules - 50 lbs.

    Our economically priced, fast-acting Calcium Hypochlorite sanitizing granules provide 65% available chlorine for hard-hitting immediate results!Our non-stabilized formula is ideal for super shocking or everyday use. Comparable to HTH, Pulsar and Chloryte. Dosages: For unstabilized pools, use 6-8 oz. per 10,000 gallons daily. For stabilized pools, use 3-4 oz. per 10,000 gallons every other day. If using as a weekly shock, use 16oz. per 10,000 gallons. To prevent bleaching and cloudy water, it is highly recommended that you pre-dissolve granules in a bucket of water before evenly dispersing throughout the pool. NOTE: A valid phone number is required to ship this item, you must be present to sign for the delivery.

    • Brand: In The Swim
    • ASIN: B002WKS6D4

  • In The Swim Cal-Chlor Pool Chlorine Granules - 25 lbs.

    Our economically priced, fast-acting Calcium Hypochlorite sanitizing granules provide 65% available chlorine for hard-hitting immediate results!Our non-stabilized formula is ideal for super shocking or everyday use. Comparable to HTH, Pulsar and Chloryte. Dosages: For unstabilized pools, use 6-8 oz. per 10,000 gallons daily. For stabilized pools, use 3-4 oz. per 10,000 gallons every other day. If using as a weekly shock, use 16oz. per 10,000 gallons. To prevent bleaching and cloudy water, it is highly recommended that you pre-dissolve granules in a bucket of water before evenly dispersing throughout the pool. NOTE: A valid phone number is required to ship this item, you must be present to sign for the delivery.

    • Brand: In The Swim
    • ASIN: B002WKJ6IS

  • Pool Essentials 25506ESS Shock Treatment, 1-Pound (Pack of 6)

    Pool essentials shock is an economic shock for all pool types. Designed for easy application through the skimmer or directly into the deep end of the pool. Ideal for use at any time through the season.

    • Brand: Pool Essentials
    • ASIN: B00PZZG1Z8
    • UPC: 014746644145

  • Shockwave CAl-HYPO 73% Chlorine Pool Shock

    Super Shockwave 73% delivers a high impact "punch" to your pool to sanitize, kill and prevent bacteria, and act as a clarifier to your pool. 73% available Chlorine 1lb Bag Treats 10,000 Gallons

    • Color: white
    • Brand: Shockwave
    • ASIN: B004VU97KO
    • UPC: 073187252524

  • HTH 51437-02-K Super 4-in-1 Swimming Pool Shock, 10-Pack

    HTH Super shock treatment is an effective, 4-in-1 shock product that kills bacteria & algae & restores crystal clarity to pool water within 24 hours, reduces chlorine odor & eye irritation caused by swimming pool water & won't fade liners. It is convenient, easy to use, & won't over-stabilize your pool.

    • Color: White
    • Brand: HTH
    • ASIN: B01N3B1A59
    • UPC: 034261008536

  • In The Swim Super Pool Shock 24 x 1 lb. bags

    STRONGEST START-UP AND ALGAE-KILLING POOL SHOCK!Powerful, fast dissolving, chlorinated shock treatment is ideal for messy Spring clean-ups and stubborn algae blooms in swimming pools. Add the recommended dosage of this product during evening hours while the filter pump is running. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. Use entire contents when opened. If any granules settle to the bottom of the pool, use brush to disperse. 73% Calcium Hypochlorite. Handy 1 pound bags!Dosage:1 lb. per 10,000 gallons.

    • Brand: In The Swim
    • ASIN: B003BPOX8Q

  • In The Swim Chlorine Pool Shock - 6 X 1 lb. bags

    This powerful chlorinated shock treatment is great for Spring start-up and ideal for a quick chlorine boost when fast-action is needed! 68% Calcium Hypochlorite. Compare to Sock It, Burn Out, Super-Chlorinator and Power Powder. Weekly Dosage: 1 lb. per 10,000 gallons. Dilute with water before before evenly broadcasting in to swimming pool water.

    • Brand: In The Swim
    • ASIN: B002WKM4A0