Quote Originally Posted by duraleigh
Don,

with a CYA level of 100, you will need to be around 25ppm to get to shock level for your pool. It then starts down immediately. Keeping it way at 25ppm as often as you can will accelerate the time frame it takes to clean your pool. I think the 15ppm level was recommended without noticing your CYA level.

If your test only goes to 3ppm it doesn't sound like a drops-based test. Go to Walmart, Lowe's etc. Better yet, spend the bucks and get Ben's kit...it's all you'll ever need.

Dave S.
Dave-

If by drops based kit you mean the kind in which you add drops of OTO solution and compare the color with the samples, that is what I am using. Lowe's carries these kits which max out at 3 ppm and the Walmart kits max out at 5 ppm.

Is there another type of drops based kit? How high will Ben's kit read?

I have owned a pool for 13 years and have never had this type of problem so it is really driving me crazy.

Don