Hi all,
Newly home owner (no pool/spa experience) with a 5,000L (1320 gallon) in-ground spa with an aeration problem.
* No heater
* SWG
* Onga LTP750 pump (280LPM / 74 GPM) - only 1 speed mode
* Pump runs daily for 45 minutes
* Pebble creek spa with waterline tiles (grout) - Not my spa but something like this http://2.bp.blogspot.com/-l_WBVPbxxjs/TWkjdLHqsfI/AAAAAAAACIY/C0M7JWL7YmQ/s1600/SSPX0124.jpg )
* Spa was re-surfaced 3 months ago and hasn't been used!!
The spa is pretty much a glorified pool (a lot smaller) with jets. My problem is I can't bring down the pH. I'm constantly adding Hydrochloric acid AKA Muriatic acid daily! I believe the issue is the spa doesn't have a "non jet mode". With a venturi system hence why the rise in pH because of aeration!
I'm adding about 1/2 - 3/4 cup of acid daily to keep the pH under 8.0-8.2. Most days it's around the 8 mark!!
Obviously with the fighting pH I'm fighting TA. Which is around the 50-80 mark depending on how much acid I've put in.
I guess my question is:
1) I can't seem to stop the aeration out of the jets - is there anything that can be done? I've checked the pump seals & pipes no issues. My gut feeling is the internal pipes have a venturi system which doesn't allow me to turn off the "bubbles".
2) Will a variable pump help?
3) Do I need to run the pump daily to turn over the water if it's not being used?
Here are my results from last weeks pool shop test. I have a test kit that I check pH & TA daily!
FC: 1.89 (low need to bring FC up a little)
TC: 2.18
pH: 8.2
AK: 97
Adjusted Alkalinity: 76
Hardness: 354
CYA: 64
Salt: 7000 (yes I know way too much salt in the spa.. I need to bring it down to 3500)
Iron: 0.1
Copper: 0
Phosphate: 40
I have a pool (completely seperate - its own pump etc) with NO problems. Water is balanced to a tee!
Any help/suggestions would be greatly appreciated. thanks!
Newly home owner (no pool/spa experience) with a 5,000L (1320 gallon) in-ground spa with an aeration problem.
* No heater
* SWG
* Onga LTP750 pump (280LPM / 74 GPM) - only 1 speed mode
* Pump runs daily for 45 minutes
* Pebble creek spa with waterline tiles (grout) - Not my spa but something like this http://2.bp.blogspot.com/-l_WBVPbxxjs/TWkjdLHqsfI/AAAAAAAACIY/C0M7JWL7YmQ/s1600/SSPX0124.jpg )
* Spa was re-surfaced 3 months ago and hasn't been used!!
The spa is pretty much a glorified pool (a lot smaller) with jets. My problem is I can't bring down the pH. I'm constantly adding Hydrochloric acid AKA Muriatic acid daily! I believe the issue is the spa doesn't have a "non jet mode". With a venturi system hence why the rise in pH because of aeration!
I'm adding about 1/2 - 3/4 cup of acid daily to keep the pH under 8.0-8.2. Most days it's around the 8 mark!!
Obviously with the fighting pH I'm fighting TA. Which is around the 50-80 mark depending on how much acid I've put in.
I guess my question is:
1) I can't seem to stop the aeration out of the jets - is there anything that can be done? I've checked the pump seals & pipes no issues. My gut feeling is the internal pipes have a venturi system which doesn't allow me to turn off the "bubbles".
2) Will a variable pump help?
3) Do I need to run the pump daily to turn over the water if it's not being used?
Here are my results from last weeks pool shop test. I have a test kit that I check pH & TA daily!
FC: 1.89 (low need to bring FC up a little)
TC: 2.18
pH: 8.2
AK: 97
Adjusted Alkalinity: 76
Hardness: 354
CYA: 64
Salt: 7000 (yes I know way too much salt in the spa.. I need to bring it down to 3500)
Iron: 0.1
Copper: 0
Phosphate: 40
I have a pool (completely seperate - its own pump etc) with NO problems. Water is balanced to a tee!
Any help/suggestions would be greatly appreciated. thanks!