Shockwave 1 lb bag of 68% cal-hypo granular pool shockShockwave 1 lb Cal-Hypo 68% Granular Shock, 25253 In stock$1399
Shockwave 1 lb bag of 68% cal-hypo granular pool shock

Shockwave 1 lb Cal-Hypo 68% Granular Shock, 25253

Ask a questionMPN 25253
$1399 ($13.99 per lb)
In stock

30 day returns · Easy, with prepaid labels provided

Quick overview

  • 68% calcium hypochlorite Each bag is 68% cal-hypo, carrying 65% available chlorine.
  • One bag per 10,000 gallons The stated dose is a single 1 lb bag for every 10,000 gallons of pool water.
  • Fast dissolving The granular form goes into solution quickly for a rapid chlorine boost.
  • Clears algae and bacteria Shocking drives chlorine up sharply to kill algae, bacteria and other contaminants.
  • Pre measured bag The 1 lb bag is sized for a typical shock treatment, so there is nothing to weigh out.
  • Granular, not liquid Supplied as a dry granular product in a sealed bag rather than a liquid jug.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.

Send us a message

A pool professional will get back to you, usually the same business day.

About Shockwave 1 lb Cal-Hypo 68% Granular Shock, 25253, SKU AWC-50-5041. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Shockwave 1 lb Cal-Hypo 68% Granular Shock, 25253
Shockwave

1 lb Cal-Hypo 68% Granular Shock, 25253

$1399
Pool Season 3 in. Jumbo Chlorinating Tablets, 47251270
Pool Season

3 in. Jumbo Chlorinating Tablets, 47251270

$5900
AquaChek Silver 7-Way Pool and Spa Test Strips for pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness and Cyanuric Acid, 100 Strip Bottle
AquaChek

Silver 7-Way Pool and Spa Test Strips for pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness and Cyanuric Acid, 100 Strip Bottle

$3599
AquaChek 4-in-1 Free Chlorine Test Strips for Swimming Pools, 511242A
AquaChek

4-in-1 Free Chlorine Test Strips for Swimming Pools, 511242A

$1072
Pool Season Polyquat 60 Concentrate Algaecide for Inground and Above Ground Pools, 32 oz, 47245960
Pool Season

Polyquat 60 Concentrate Algaecide for Inground and Above Ground Pools, 32 oz, 47245960

$3400
LaMotte Mobile WaterLink Spin Touch Lab, 3581
LaMotte

Mobile WaterLink Spin Touch Lab, 3581

$1,14900
LaMotte R-2086 ColorQ 2x PRO 7 Test Reagent Refill Kit
LaMotte

R-2086 ColorQ 2x PRO 7 Test Reagent Refill Kit

$11299
Subtotal

Product details

Shockwave granular pool shock comes in a 1 lb bag of 68% calcium hypochlorite, which carries 65% available chlorine. It is the bag size most owners reach for when a pool needs a sharp chlorine boost.

Dosing

Use one bag for every 10,000 gallons of pool water. A 20,000 gallon pool takes two bags, and so on. The bag is already measured, so there is nothing to weigh or estimate.

What it is for

Routine sanitizer keeps a balanced pool clear. Shocking is the step above that: it pushes the chlorine level well past the normal range for a short time to kill algae, bacteria and other contaminants, and to clear the water after heavy use, a storm or a stretch of hot weather.

Handling

Calcium hypochlorite is a strong oxidizer. Keep it dry and sealed, store it away from other chemicals, and follow the directions on the bag when adding it to the pool.

Specifications
Brand Shockwave
Manufacturer part number 25253
UPC 073187252531
Type Granular pool shock
Active ingredient Calcium hypochlorite
Concentration 68%
Available chlorine 65%
Package size 1 lb bag
Dose One bag per 10,000 gallons
Shipping weight 1.05 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

Customer reviews

Questions and answers

What people ask about this product, answered by our pool techs.

How much should I use?
One 1 lb bag per 10,000 gallons of pool water.
What is in the bag?
68% calcium hypochlorite, which gives 65% available chlorine.
How quickly does it dissolve?
It is a fast dissolving granular shock, so it goes to work soon after it reaches the water.
What does shocking a pool actually do?
It lifts the free chlorine level far above the normal sanitizer range for a short period, which kills algae, bacteria and other contaminants that a routine chlorine level struggles with.
Ask your own question