Changing Sand

[Cindy32tn]

This is foreign to me. What is CYA reading? I am having to backwash and shock ever other day and the green comes back. Ive never had this much trouble with the pool.

[aylad]

CYA is the same thing as stabilizer--it sort of acts like a sunscreen for your chlorine. How high you need to take your chlorine levels depends on your CYA level. Once you know, and achieve your shock level, you have to maintain that level until the algae is dead, and until you can go from sundown to sunup without losing any chlorine.

Janet

[PoolDoc]

If you've been using dichlor -- a stabilized form of chlorine -- it's VERY likely you have rather high levels. The "Best Guess" page linked in my signature explains what's going on. You will have to have a K-2006 test kit (test kit info page ALSO in my sig) in order to measure and manage your pool levels. (There are other kits, but they cost more) Dealer testing is usually NOT trustworthy, and the only way to tell if your dealer is the exception to the rule, is to test it yourself and compare. But, once you can do that, you don't NEED his testing.

[Cindy32tn]

I see your in Chattanooga...can you just come fix it for me. lol What is your take on changing sand?

[PoolDoc]

No, no, no.

I try to keep a low profile here -- I don't want to get crucified when I go to the local wholesalers!

(Besides, I've operated pools that had 40 year old sand, that worked fine!)

I keep my local identity pretty separate from my online one. My one remaining local customer just found out that I have a somewhat well known online presence -- and I've been working for them nearly 20 years!