Skip to content
PoolFlowStaging
Chemicals & balancers

Pool shock

from $4.99Available

Warnings & cautions

Keep out of reach of children and pets. Store in a cool, dry place, away from other chemicals. Never mix pool chemicals together — add each separately to the water, never the water to the chemical. Wear gloves and eye protection, and read and follow the product label before use.

Size

Online checkout is coming soon. For now, ask us about any product and we’ll take care of the rest.

  • Licensed & insured
  • Flat-rate US shipping
A fast-acting cal-hypo shock that clears cloudy water and knocks back organic buildup after heavy use, rain, or a hot spell.

Product information

How to use

How to use

Pre-dissolve in a bucket of water, then pour around the pool with the pump running, ideally in the evening. Wait until chlorine drops below 3 ppm before swimming.

Tips

Tips

Add about 1 lb per 10,000 gallons for routine shocking; double for a green or heavily used pool.

What’s inside

What’s inside

Calcium hypochlorite. Full ingredient list on the label.

Always read and follow the label, and test on a small, hidden area first. Use as directed and keep products out of reach of children and pets.

Reviews

No reviews yet — be the first to share how this worked for you.

Ask about this product

Questions about this product or how to use it? We'll get back to you within 2 days.

Single 1 lb bag

$4.99

Demo site — this is a sample. Get this for your business (opens in a new tab)