I need some advice. I have some streaks and stains in the plaster. The pool is about 18 years old. My water has been very stable with rock solid readings. I use Autopilot Total Control SWG. My latest readings are:
FCL 1.68
TCL 1.72
PH 7.4
ALK 50
CH 340
CYA 60
Phosph 250
Salt 2890
Temp 74
The PB says that the reason for the staining is low ALK and recommends that I increase it. I am worried about increasing ALK without knowing how that will affect everything else. I have used United Chemicals Red but did not remove the stains. Help please. Thanks.
FCL 1.68
TCL 1.72
PH 7.4
ALK 50
CH 340
CYA 60
Phosph 250
Salt 2890
Temp 74
The PB says that the reason for the staining is low ALK and recommends that I increase it. I am worried about increasing ALK without knowing how that will affect everything else. I have used United Chemicals Red but did not remove the stains. Help please. Thanks.