No CYA in pool, redux

[StevenHB]

Thanks, Ben. I have your PS-232 (I think) from some years ago so I can test all of the things that you mention.

For what it's worth, I have a DE, not a sand filter.

[PoolDoc]

Yeah, the PS-232 was mine. I'm amazed at how long some of those have lasted!

Anyhow, you can do what I said about the cal hypo with DE, but you'll have to clean your filter more than you would otherwise. The problem is, you'll end up with really high calcium in your pool if you use cal hypo as described on the product label.

[StevenHB]

I've replaced some of the solutions, but it's fundamentally a pretty solid plastic box.

Just out of curiosity, why are you recommending that I do these things? What's the benefit?

[PoolDoc]

Which things?

[StevenHB]

You recommended that I use dichlor to add CYA (rather than more CYA into the skimmer), raise the pH and dump cal hypo into the skimmer. Is this all to build a reservoir of calcium carbonate in the filter, which will then buffer the TA, CH, and pH?

I was mistaken, my kit is a PS-233.

[PoolDoc]

Sorry, Lucy, I 'splained all I'm gonna 'splain.