First time test results...

[aylad]

High CYA level means that you'll either have to drain some of the water and refill to lower it, as Watermom suggested, or raise your minimum free chlorine level to compensate, in order to keep your pool clear and free of algae. I strongly suspect that you're using trichlor pucks to chlorinate, which will both raise your CYA and lower your pH....if that's the case, you need to stop using them at this point and use either cal-hypo or bleach to chlorinate. If you raise your CYA much higher, I'm not sure that you'll be able to maintain a high enough chlorine level to stop the algae.

Janet

[Watermom]

As Jan said, if you choose not to do a partial drain, you'll have to run higher chlorine levels all the time or you'll have a green pool. Take a look at the chart at the following link.

http://www.poolforum.com/pf2/showthread.php?t=365

[freddyttt]

As Jan said, if you choose not to do a partial drain, you'll have to run higher chlorine levels all the time or you'll have a green pool. Take a look at the chart at the following link.

http://www.poolforum.com/pf2/showthread.php?t=365

Thanks.

so if i never do a partial drain my CYA levels will never fall?

[Watermom]

You will lose some through water splashout and water replacement which will dilute it some but this won't be significant. Some people, me included, typically lose all their cya over the winter and have to readd each spring. But, I would doubt that with a cya reading of 100 that it would be likely to drop to 0. That being said, unless you do a partial drain, you will most likely continue to have a cya reading of 100. Some people decide to just live with it and maintain the higher chlorine levels and do just fine. It is just a matter of preference. At any rate, no more trichlor tabs in your pool or your cya level will just continue to rise. Hope this helps. Let us know what you decide to do.

[freddyttt]

new numbers as im still trying to figure this out.

FC - 11.5
CC - 0
pH - 7.0
CYA - 90
TA - 50
Calcium - 90

[Watermom]

FC, CC, calcium look fine. I would suggest raising your alk and ph a little. Aim for 7.4-7.6 for ph and 80-120 for alk.

[freddyttt]

FC, CC, calcium look fine. I would suggest raising your alk and ph a little. Aim for 7.4-7.6 for ph and 80-120 for alk.

good Morning.....

should i add 20 mule and baking soda at the same time raising ALK and PH.

or do one at a time.

thanks-

[Watermom]

Good morning back! You can do both at the same time. I do both all the time with no problems. Just go with small additions and add them slowly to your skimmer while the pump is running, breaking up any large clumps. Then, wait a few hours to let it circulate and then retest and redose as needed until you get them where you want them. Easier to go slow and add more rather than overshoot your target and have to lower them. Hope this helps.