Hi. We got our first pool this year. You can see my sigline for current pool info. I am currently using 1" stabilized tablets but want to get away from those into probably bleach. The bleach is cheaper, and I know exactly what I am putting in the pool. Plus I've put about half a bottle of tablets into the pool over the last few days. I just treated for mustard algae this morning so I imagine that is where the chlorine has been going.
I have a liquid drop-type test kit. Current numbers are
chlorine 4PPM - does my kit measure total or free? The liquid is reacting to free, and the used chlorine is stable, no?
pH is 7.6
Alkalinity is 150PPM - my research says there is disagreement on whether that is high or not at least for vinyl.
Stabilizer - I know mine is low. Is it necessary to get a kit that can measure stabilizer? As I understand it stablizer stays in the water so I should be able to get it tested once, find out how much I need then add that and the bleach?
Pumps - apparently no one can agree on whether running at night or during the day is better. The only thing that makes sense to me is running it at least long enough to get the water through once.