New Pool Owner: Fighting Mustard Algae, CYA @ 100, Stains - Need Rx

[Casey]

No reason to do that! SLAM with unscented bleach. You know what's in it. And I don't see a test result for Calcium. All the more reason not to use powdered shock packets.

 

[Pontiyak]

No reason to do that! SLAM with unscented bleach. You know what's in it. And I don't see a test result for Calcium. All the more reason not to use powdered shock packets.

CH 180

Newb Q: How do the shock packets affect the the hardness?

 

[Smykowski]

Use the dropdowns at the bottom of PoolMath. You'll have to look at the packet for the % of calhypo.