PH keeps raising in spa!
#1
Member
Thread Starter
PH keeps raising in spa!
Yesterday’s readings were PH 8.3+ Alk 200
Added 6 Tbl of muriatic acid dropping PH 7.2 & Alk 140.
Today PH 8.3 added 4 Tbl of muriatic acid dropping PH to 7.2
Bromine in the 2’s - OK
Hardness 200
Any idea what causes PH to keep rising?
thanks!
Added 6 Tbl of muriatic acid dropping PH 7.2 & Alk 140.
Today PH 8.3 added 4 Tbl of muriatic acid dropping PH to 7.2
Bromine in the 2’s - OK
Hardness 200
Any idea what causes PH to keep rising?
thanks!
#2
Member
Thread Starter
Found the answer! Running the pumps and blower injects air, the air causes PH to raise.
Took 22 Tablespoons of muriatic acid to get TA down to 50. A good article!
https://www.troublefreepool.com/thre...-%28or-pool%29
Took 22 Tablespoons of muriatic acid to get TA down to 50. A good article!
https://www.troublefreepool.com/thre...-%28or-pool%29
#3
Group Moderator
Yes, it's a problem with spas. The jets and ozone generators cause the pH to climb over time. I suspect your alkalinity is too high. Once you get the alkalinity down where it should be you'll find that the pH stays where it should much better.