Mammallama,

Thanks for the formula. The problem I've run into is that it *doesn't* slope uniformly. About half way down the length the middle starts to slope down but the edges - about 18" out from the pool walls - remain at the same "elevation" as the shallow end. I've tried measuring the depression and subtracting it from the volume as if it was a standard 52" 16X32. It's certainly not scientific. I'm still waiting to hear from Doughboy.

Mbar,

Thanks for the advice. So far I have no combined cl. I'll see what the morning brings for TC. The kids have been drooling over the pool since the sludge cleared up. I haven't even dropped the ladder for fear they'd get into it. The walls are still green/brown but, unless I'm just deluding myself, I think it's a little lighter than it originally was.

I ordered some chem refills from Ben. Hope they get here soon. My Cl powder is grey and it says to replace when that happens.

Coffeebean