Botlefedpony

My problem right now is I can't get the PH to stay down, As soon as i run the air it goes back up over 8.0 I just added Gentle Spa as a buffer and the PH went through the roof.

OK So I have read through this forum and the last few days, I have always had issues with my tub so now I bought the Taylor kit and started fresh last night. Here is what I have now. 400 Gal tub TA 50 PH 7.8 CH 220 My problem is when ever I run the pumps with the air my PH will go over 8.0, I let the tub sit over night and my readings this AM were TA 50 PH 7.6 CH 220 This was before I ran the pumps at all, after running the pumps my PH went back to the 7.8 8.0 range. Should I read the PH before I run the pumps and go with that reading or after the pumps have run? My temp is up to 102 but I have not added any Bromine yet so I have not tested for that. Waiting to get the other numbers right first.