PH Rising Overnite

c ment pond

Active member
Oct 21, 2015
30
Beverly Hills, Michigan
Over the last couple of days my PH is slightly higher in the morning, I am running a heat/cool pump overnite to cool the water off, could that be the source of additional aeration and causing a rise in my PH, reading in the morning is 7.6. I keep the PH at 7.4, TA 80, CH 250 and CYA 75.
 

tim5055

Mod Squad
TFP Expert
LifeTime Supporter
May 11, 2014
11,021
Franklin, NC
Yes, any aeration can increase pH. Why 7.4 exactly? Your pool may be happier with pH a little higher and TA a little lower. Try letting it get to 7.8 - 8.0 before using acid to go to 7.6 or so. I wouldn't let TA go below 50, but don't foce it up if it starts to drop.
 

c ment pond

Active member
Oct 21, 2015
30
Beverly Hills, Michigan
Yes, any aeration can increase pH. Why 7.4 exactly? Your pool may be happier with pH a little higher and TA a little lower. Try letting it get to 7.8 - 8.0 before using acid to go to 7.6 or so. I wouldn't let TA go below 50, but don't foce it up if it starts to drop.
no reason for 7.4 seemed like a middle of the road value, TA doesn't fluctuate much generally stays between 70 & 80. Thanks for your help.