used yellow out before I found you.....

[PoolDoc]

One more thing -- yellow around the walls can be algae, or iron stains. Either way, brushing is the thing to do, both to help and to ID the problem. (Mustard algae will brush away; iron not so much.)

Ben

[hkcon]

ok finally got to Leslie's and my FC is 1.0, PH is 7.6, TA is 110, Calcium is 280, TDS is 1200 and my CYA is .....wait for it.......0 yes I said 0 yipes...he recommended 3 gallons of stabilizer $36.00 per gallon ouch let me know what you guys (I am using "guys" in the non gender specific sense) think.

[PoolDoc]

(I am using "guys" in the non gender specific sense)

Yep. You're from San Francisco (to feel like it's necessary to add that).

Just buy plain stabilizer -- cyanuric acid. It dissolves slowly, but works fine, and is more concentrated than the liquid stuff.

Clean your filter -- so you can run several days without backwashing or cleaning, and add your stabilizer SLOWLY to the skimmer with the pump on, the skimmer circulating, and the skimmer basket in place. Run your pump 24/7 for the next 3 days.

Meanwhile, keep bleaching at night, till you hold a chlorine level during the day.

Ben

[Watermom]

I'd start with 7-1/2 lbs of the granular stabilizer which should take you to about 35ppm of CYA. Add it slowly so you don't clog the skimmer pipes. Don't test for it for about a week before deciding whether or not you need to add more. It is always easy to add more later than it is to get rid of it when you have too much.

[hkcon]

you "people" LOL are the best..

[Watermom]

Thanks! Hope that means you are having success!

[hkcon]

yes the pool is clear and bright and hopefully now with the stabilizer in we will be able to keep chlorine around for a min.

[hkcon]

so if I am reading the chart right...at 35 ppm of cya i want 3 to 6 ppm of chlorine, and with my pool size of 26,000 gals. then i get about 4 ppm raise from a gallon of 10% chlorine?