Why CYA is lost

GoofyYno

Active member
Feb 27, 2011
43
#1
I can't seem to maintain my stabilizer. I finally got most of the other chemistry in line, but have been running with a high pH. I know the hot Az sun is part of the reason, but going from 80 to 20 or below, adding > a galon of liquid stabilizer, then repeating the process the next week, dosen't sound right. do I just need solid cya once my levels are right? how much of this stuff should I expect to go through this summer?

(I'm sure there is a compete write up on this, but I could find it in the search.)
 

danivdp

Well-known member
Mar 16, 2011
91
Sunny Central Florida
#6
I don't know, I lose a lot too. When I started BBB, my CYA was only 90, and I had been using exclusively tabs for years. I've been BBing for a little over a year now, after the first 6/8 months it got down to 30, and now I put 8-10 tabs in the thing every other month to get it from 20ish to 30/40.
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,879
Silver Spring, MD
#7
The most common causes of CYA going down are splash out, backwashing, and leaks. It is also fairly common for CYA to disappear over the winter.