Super Shockwave 73% Cal Hypo Granular Pool Shock, 1 lb Bags, 24 Pack In stock$168⁹⁰

Super Shockwave 73% Cal Hypo Granular Pool Shock, 1 lb Bags, 24 Pack

Name: Super Shockwave 73% Cal Hypo Granular Pool Shock, 1 lb Bags, 24 Pack
Brand: Shockwave
SKU: AWC-50-6427-24pack
Price: 168.90 USD
Availability: InStock

Ask a questionMPN 25252

$168⁹⁰ ($7.04 per lb)

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Quick overview

Full strength cal hypo 73% calcium hypochlorite with 70% available chlorine, the high end of what cal hypo shock is made in.
One bag per 10,000 gallons The routine weekly dose. Two to three bags per 10,000 gallons on green water, per the label.
Finer, faster dissolving More available chlorine and less inert filler per pound than a 68% bag, so a bag goes a little further and leaves a little less behind.
Kills algae and burns off chloramines Chlorine shock, so it sanitizes as it oxidizes: the shock for green water, storms and opening.
Add it with the pump running Pre-dissolve for a vinyl liner, brush any granules off the floor, and swim when free chlorine tests back to a safe level.
24 bags in the case a season of weekly shocks on a 20,000 gallon pool, each bag a full routine dose for 10,000 gallons.

Full description and specifications ↓

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Product details

Super Shockwave is calcium hypochlorite shock at 73%, with 70% available chlorine. It is the same granular cal hypo the industry runs on, at the top of the strength range: more chlorine and less inert filler in every pound than a 68% bag, so a bag raises the chlorine a little further and leaves a little less calcium behind. This listing is 1 lb bags, 24 pack.

How to use it

One bag per 10,000 gallons is the routine weekly shock. Add it in the evening with the pump running, broadcasting it across the deep end, and brush any granules off the floor so nothing sits on the surface. For a vinyl liner, pre-dissolve the bag in a bucket of water first and pour that in. On green or cloudy water, use two to three bags per 10,000 gallons, per the label, and repeat until the water holds chlorine overnight.

Swim wait

Chlorine shock raises free chlorine well above the normal 1 to 3 ppm, so stay out until it tests back to a safe level, typically 4 ppm or below. That is usually overnight to 24 hours. Test before you swim rather than counting the hours.

Handle it like the oxidizer it is

Never mix cal hypo with trichlor tablets or any other chemical, and always add chemical to water, never water to chemical. Store it cool, dry and sealed, away from acids and from non-chlorine shock. Bags beat buckets here: a pre-measured bag means no scoop, no dust on your hands and nothing to bleach your clothes.

Specifications
Brand	Super Shockwave
Manufacturer part number	25252
Type	Granular pool shock
Active ingredient	Calcium hypochlorite
Concentration	73%
Available chlorine	70%
Package size	Twenty four 1 lb bags
Dose	One 1 lb bag per 10,000 gallons
Shipping weight	24 lb
Ships	Parcel

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Customer reviews

Questions and answers

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

How is 73% different from the 68% Shockwave?

More available chlorine per pound, 70% against 65%, and less inert material, so a bag raises the chlorine a little further and adds a little less calcium. Once you are in the 70s you are at the ceiling for cal hypo; there is no meaningful step beyond it.

How much do I use?

One 1 lb bag per 10,000 gallons for a routine weekly shock. For green or cloudy water, two to three bags per 10,000 gallons, per the label, repeated until the water holds chlorine overnight.

When can I swim after adding it?

When free chlorine tests back to a safe level, typically 4 ppm or below and ideally 1 to 3 ppm. Plan on overnight to 24 hours, and test before you swim.

Can I use it in a salt pool or on a vinyl liner?

Yes, with care. Cal hypo adds calcium, which scales a salt cell over a season, so watch calcium hardness or use a non-chlorine or dichlor shock for the weekly routine. On vinyl, pre-dissolve it in a bucket of water so no granule sits on the liner.

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