[David]

I use the test kit with the little vials and take a sample to local pool store about once a month in the summer. I installed an inline chlorinater that really helps and I use the multiple chemical tablets.

Keeping up with Ph and chlorine is pretty easy with the test kit but I rely on the pool store for the other readings.

I don't bother with backwashing the DE system because it doesn't take much longer if any to take the filter apart and wash the elements.

I've had much better luck with the higher quality, higher cost chemicals from the pool store vs the stuff you get at Home Depot or one of the low end pool stores.

The pool pump needs to run in the heat of the day. I run from about 10am to 4pm in the summer with at least 2 hours of pool cleaner time. A good brushing once a week in the summer helps too.

In the winter I back the pool pump to 4 hours and add very little chemicals.