white calcium line

[waterbear]

Free chlorine. 5
This is a good place for the FC with a SWG and a CYA of 80 ppm.
Total avail chlorine. 5
TC-FC=CC which is 0 in your case and what you want.
Ph. 7.6
Normally I would say this is fine and when it climbs above 7.8 to lower it back to 7.6 but without knowing what your calcium hardness is it might actually be better lower.
Total alkalinity. 120
You will be fighting rising pH with the TA this high in a salt pool. Lower it to 70 ppm.
Cyanutic. 80
Cyanuric acid at 80 ppm is perfect, keep it there. The vast majority of SWG manufacturers recommend 80 ppm. A few go as high as 100 ppm
Phosphates. 20
Ignore phosphates, not important and do not waste money on phosphate remover!
Salt. 3400
This depends on your brand of SWG. it could be fine, it could be low. Some SWGs like a salt around 3000 ppm, others operate at 4000, 5000, or even 6000 ppm. It depends on the brand.
hi, these are my numbers my neighbor just sent me thanks ...Brad

There are no readings for calcium hardness, which is very important for a plaster pool. It is impossible to calculate the Saturation index without it and, depending on what it is, some of the recommendations I gave above could change.

How is your neighbor getting these readings? Pool store, test strips, drop baed test kit?

The other change I wold make would be to add borates to 50 ppm.

[bradc344]

Thanks waterbear he takes the water to the pool store I will see if he has the hardness number I might have to wait till I get back next month with my new test kit ,will post back thanks for the reply.....Brad

[bradc344]

Hi, thanks for the reply's, one more question has anyone found a tile sealer that works on pool tile to help reduces the calcium build up on the tile ...thanks Brad

[waterbear]

Hi, thanks for the reply's, one more question has anyone found a tile sealer that works on pool tile to help reduces the calcium build up on the tile ...thanks Brad

NO such animal. Proper water balance is the key and a good test kit is the best thing to help you with that.