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.