Hi all,
My old single speed pump died, so I have been adjusting to a new VS pump over the past few weeks. I have noticed a massive amount of bubbling coming from a single return - the one on the far side of the pool from the equipment pad. Researching this site and a little experimenting is leading me to believe that the bubbles are coming from 2 sources.
1) VSP at a lower speed makes bubbles. Running RPM in the 2000's there is a big bubble in the pump - about 3-4 4 inches deep. When I turn it up to full speed the bubble goes away.
2) The solar heater pressure valve is not fully engaged at lower RPM, so air is being sucked into the system. Going up to the panel with the pump running at low speed you can hear the air rushing in, and simply putting my hand around the valve reduces the sound.
Normally a bubbling return is a big pH problem. However, I have a chronic high TA problem. It is strange, my pH is very stable at about 7.2-7.4, but my TA keeps rising (up to 190 now). It seems to me that the continually bubbling return should finally raise my pH, allowing me to add acid and reduce the TA. Is there a problem with this situation that I am missing, or is a bubbling return OK?
My old single speed pump died, so I have been adjusting to a new VS pump over the past few weeks. I have noticed a massive amount of bubbling coming from a single return - the one on the far side of the pool from the equipment pad. Researching this site and a little experimenting is leading me to believe that the bubbles are coming from 2 sources.
1) VSP at a lower speed makes bubbles. Running RPM in the 2000's there is a big bubble in the pump - about 3-4 4 inches deep. When I turn it up to full speed the bubble goes away.
2) The solar heater pressure valve is not fully engaged at lower RPM, so air is being sucked into the system. Going up to the panel with the pump running at low speed you can hear the air rushing in, and simply putting my hand around the valve reduces the sound.
Normally a bubbling return is a big pH problem. However, I have a chronic high TA problem. It is strange, my pH is very stable at about 7.2-7.4, but my TA keeps rising (up to 190 now). It seems to me that the continually bubbling return should finally raise my pH, allowing me to add acid and reduce the TA. Is there a problem with this situation that I am missing, or is a bubbling return OK?