I'm working on pulling together several data threads into what I hope will be a strategy (and not a tangled mess). I would appreciate any comments or suggestions.
1) Added borates per TFP recommendation in the spring. Very pleased with the results.
2) Using Rainbow chlorinator and chlorine sticks. CYA went up from 30 to 108 over the summer.
3) After 3 years I've still been unable to find the source of copper and iron that is causing stains. Getting ready to do an AA treatment. I'm also going to start using Jack's Magic Blue Stuff as a sequestrant instead of Natural Chemistry Scale Free (which was recommended by Natural Chemistry as being a stronger sequestrant than Metal Free).
4) The pool has a waterfall-style water feature that causes some aeration.
5) The pool surface is epoxy paint. The epoxy paint manufacturer (Zeron) recommends a TA range of 125-150 ppm and a CH range of 175-225 ppm. I add 1/3 of the CYA reading to the TA numbers to account for the contribution of CYA to the TA reading. (E.g. with a CYA of 60, I try for TA in the range of 145-170.)
Due to the CYA rise I'm thinking of switching to a liquid chlorinator or SWG. Folks on TFP seem happy with the Liquidator. My concerns about high chlorine levels damaging the pump seal, spider gasket or heat pump core seem to have been addressed on TFP. SWG's and peristaltic pumps are a lot more expensive than the Liquidator. Speaking to the owner of a pool maintenance company (for vacation coverage), he said that his clients with SWG's have lots of problems with water quality and failing controllers.
The TFP recommendation for pH with SWG's is 7.5-7.6. The TFP recommendation to minimize staining is a pH of 7.2. I wonder if an SWG would work at cross-purposes to my stain-fighting efforts.
This may become a theological discussion, but I would appreciate folk's thoughts and recommendations on Liquidator vs. peristaltic pumps vs. SWG chlorinating systems. I would especially appreciate information from anybody who has used several different types of systems.
I'm planning to do the AA treatment and then dump some water (with its metal) to drop the CYA. I'll then refill and add sequestrant. Does this make sense or is there a reason to drop the CYA before the AA treatment?
Thanks!
1) Added borates per TFP recommendation in the spring. Very pleased with the results.
2) Using Rainbow chlorinator and chlorine sticks. CYA went up from 30 to 108 over the summer.
3) After 3 years I've still been unable to find the source of copper and iron that is causing stains. Getting ready to do an AA treatment. I'm also going to start using Jack's Magic Blue Stuff as a sequestrant instead of Natural Chemistry Scale Free (which was recommended by Natural Chemistry as being a stronger sequestrant than Metal Free).
4) The pool has a waterfall-style water feature that causes some aeration.
5) The pool surface is epoxy paint. The epoxy paint manufacturer (Zeron) recommends a TA range of 125-150 ppm and a CH range of 175-225 ppm. I add 1/3 of the CYA reading to the TA numbers to account for the contribution of CYA to the TA reading. (E.g. with a CYA of 60, I try for TA in the range of 145-170.)
Due to the CYA rise I'm thinking of switching to a liquid chlorinator or SWG. Folks on TFP seem happy with the Liquidator. My concerns about high chlorine levels damaging the pump seal, spider gasket or heat pump core seem to have been addressed on TFP. SWG's and peristaltic pumps are a lot more expensive than the Liquidator. Speaking to the owner of a pool maintenance company (for vacation coverage), he said that his clients with SWG's have lots of problems with water quality and failing controllers.
The TFP recommendation for pH with SWG's is 7.5-7.6. The TFP recommendation to minimize staining is a pH of 7.2. I wonder if an SWG would work at cross-purposes to my stain-fighting efforts.
This may become a theological discussion, but I would appreciate folk's thoughts and recommendations on Liquidator vs. peristaltic pumps vs. SWG chlorinating systems. I would especially appreciate information from anybody who has used several different types of systems.
I'm planning to do the AA treatment and then dump some water (with its metal) to drop the CYA. I'll then refill and add sequestrant. Does this make sense or is there a reason to drop the CYA before the AA treatment?
Thanks!