Best way to add granular shock

[SkipLynn]

For years, I have always added granular shock to my fiberglass white pool. Is it better to pre dissolve it?

 

[PoolStored]

NO Sarcasm in my voice. Just a question. Why are you using granular shock?

Assuming you are using Cal-Hypo...

Adding Calcium Hypochlorite​

Adding Cal-Hypo to a pool is more of a process than adding Liquid Chlorine. Additional steps need to be taken to avoid damaging your pool's surface. To add Cal-Hypo a user should:

• fill a five gallon bucket roughly 3/4 of the way full with pool water.
• measure the amount of Cal-Hypo needed to increase your pools Free Chlorine level to the desired level using PoolMath and add that to the bucket of water.
• mix this water thoroughly until all the Cal-Hypo is dissolved.
• pour that solution SLOWLY into the water in front of your return with the pump on it's highest setting.
• brush the pools surface immediately to make sure all Cal-Hypo isn't sitting on the pools surface.
• vacuum the Cal-Hypo up immediately, if any is found on the floor, to avoid damaging the surface of the pool. Do NOT allow it to sit on the floor and dissolve.

Calcium Hypochlorite - Further Reading

www.troublefreepool.com

 

[SkipLynn]

It’s what I have right now. Is liquid chlorine better?

 

[mknauss]

Cal Hypo should be illegal to sell in Arizona.
Adding more calcium to our calcium rich fill water with the level of evaporation we have is not good.

Use liquid chlorine.

 

[PoolStored]

Cal-Hypo adds Calcium, which is not necessary in a FG pool. IN AZ, you likely have high CH in your fill water. Unless you have a heater, then you need about 200ppm. When calcium gets too high, you can get scaling, particularly if you have a tile line around your pool.

You should use liquid chlorine.

 

[SkipLynn]

Cal Hypo should be illegal to sell in Arizona.
Adding more calcium to our calcium rich fill water with the level of evaporation we have is not good.

Use liquid chlorine.

Cal-Hypo adds Calcium, which is not necessary in a FG pool. IN AZ, you likely have high CH in your fill water. Unless you have a heater, then you need about 200ppm. When calcium gets too high, you can get scaling, particularly if you have a tile line around your pool.

You should use liquid chlorine.

Thank you both for your advice. I hate the dry shock due to the fumes and trying to store it. I think I will go with liquid chlorine shock after my dry shock is gone!

 

[PoolStored]

Oh...and the only way to reduce CH is to replace water.

 

[SkipLynn]

Which is not a great idea in water shortage Arizona!

 

[Mdragger88]

Welcome to TFP
Glad you found us!
Check out —> Pool Care Basics

 

[BDY]

Ps - liquid shock = liquid chlorine or liquid bleach. You can find it in the pool supply aisle of Walmart, Lowe’s, HD or Ace, among others. Or if you are really careful about not buying any with additives or scents or splash preventers you can get milder plain laundry bleach in grocery but it’s usually weaker and takes more.

Anyone who try’s to sell you “liquid shock” is trying to make $$$ from you.