Hi Janet,

I use strips and reagents. The strips for a quick and dirty first thing in the morning, the reagents every other day, but the reagents I have do not test for CYA. The only way I can test for that is with either the strip or at the pool store.

I have to add water about twice a week, an inch or so each time, because the dogs drag out a lot. We've stimated we loose a gallon each time a dog leaves the pool. That comes to roughly (ruff-ly?) 50 gallons a day lost.

I also lose some volume when I backwash and rinse, so there's some refilling happening then, but I cannot possibly drain and refill to dilute the CYA level. My well won't take it. If the CYA is truly at 100 then I should be back to 50 by the end of the season

I will keep an eagle's eye on algae build-up and keep the Cl level up to compensate. Thanks for the heads up on that.