Halfdones's pool

[Watermom]

You only want a 1psi increase when the DE is added. Backwash it out and try again. Add a smaller amount. You may not see the pressure rise immediately. It always takes 20-30 minutes to show up in my pool. Pre-dissolving it is right.

It is fast for CYA to dissolve, but even still, I wouldn't test for it for a few days.

[Halfdone]

I backwashed the DE out and reapplied. This time I used about 1/2 cup predisolved and it went up about 1-2lbs. I'll leave it there and keep an eye on it. I see what you mean about it taking 20-30 min for the full increase. I'll figure it out sooner or later how much to apply, then it should be easy after that.

I'll wait for another couple of days for the CYA test but already our Chlorine seams to be lasting a bit longer.

Any ideas on the cloudy water problem. We have tried clarifiers in the past but it didn't do a thing. It almost looks like white smoke in the pool. I can barely make out my second step. I think the particles are so small they pass right through the filter. I am hoping the DE trick will help but would like to get it done quicker. I have been running the filter constantly for 4.5 days now.

On the Chlorine test when checking the CC level do I multiply the CC test with the result from the FC test or do I multiply by the value (1 drop = .5ppm) that I used for the FC test? Does that make sense?

Thanks again, its nice to finally start seeing progress.

[Watermom]

On the CC test, multiply each drop by 0.5ppm.

Resist the temptation to add a bunch of stuff right now. Just bleach. Give your filter a chance to do its job.

[BigDave]

Your CYA may have come right through the sock without being dissolved in which case it is probably sitting on the pool floor but you can't see it through the opaqe pool water. As I understand it, CYA has a very low pH and may damage your liner if it sits on it. I'd brush the bottom as often as possible until you can confirm it is granule free.

[Watermom]

Or vacuum it up and let it dissolve in the filter if there is any on the floor.

[Halfdone]

Ok, so I will go out and sweep and try to see if a cloud comes up off the bottom. If so I'll go ahead and vacuum it up. The problem with that is I cant see to tell if I get it all. I'll do a fresh backwash before vacuuming so I can leave the powder in the filter longer. I tested the CYA this morning and am at about 25, so at least its coming up.

As far as the CC, this morning I am at CC-1 with FC-5.5. I have been using bleach to keep the chlorine up to between 10 and 15 but my CC isn't moving, should I be concerned? What is the Combined Chlorine mean anyway?

[Watermom]

Keep running the high chlorine levels. That CC will come down. But, not with FC of 5.5. Maintain it at shock level. How often are you testing and adding bleach? How does the water look? Getting any better?