Quote Originally Posted by aylad View Post
If it were my pool, I'd go ahead and use up the trichlor that you have. Even if you go up to 50 or so and don't like it that high, it's very easily reduced by backwashing and splashout back down to the 30s. The Cal-hypo tabs are not good at all--they used to make one in a capsule that dissolved just like the trichlor tabs, but these newer ones just go to mush no matter where you put them. Yuk.
I agree! (Isn't amazing how sick minds think alike!)
(Janet, don't ban me from the board, I promise to behave!)





(maybe)


Heavyhook,
re: CYA test. The scale is not linear as you have noted so it is really harder to get a precision greater than 5 ppm on the CYA test. If it is close to 30 call it 30, if it is close to 40 call it 40, if it is somewhere in the middle call it 35. You really do not have any more precision than that with this test (and probably not even that much.)
Remember it's just a pool, not rocket science!