Me: I'll be back later to buy some chlorine jugs.
Pool store: Why would you want to use liquid chlorine? It's only 5% strength.
Me: I thought you sold 10-12% strength.
Pool Store: They are when we get them, but by the time you get it home, it's down to about 5% strength.
Me: hmmmmm... really? That fast?
Pool Store: Better to use the higher 78% strength powder chlorine.
Me: You mean those dichlor and trichlor powder bags?
Pool Store: Yep, right over there.
Me: But I read somewhere that using those bags also increase the CYA in the pool. And my CYA is pretty high already.
Pool Store: How do you figure that?
Me: The powder breaks down into chlorine and leftover CYA.
Pool Store: No, that only applies to the tablets that you use for feeders and floaters.
Me: Aren't the powder and tablets the same chemically?
Pool Store: (confused pause) They may be similar, but the powder bags won't affect the CYA levels. If I were you, I'd get the stronger 78% powder instead of the 5% liquid, save you more time and money.
Me: okie dokie... thanx for the advice.