Hi pool gurus,
I am purchasing a home with a pool at the end of this week. I'm a first time pool owner, but I've been absorbing as much as I can here and am ready to hit the ground running with the TFP method. The pool is 32,000 gal gunite/plaster.
I bought a TF-Pro test kit and was able to grab a sample of water while doing my final home walkthrough yesterday so that I know what I'm facing once I take over. The current owner uses chlorine tablets in the skimmer basket and said they also throw 1 lb of cal-hypo shock in every week. They're clearly not a TFP reader. The water looks blue/clear, but i did notice some isolated green algae growth on the walls.
Here are my test results from the TF-Pro. I'm facing several issues and would love guidance on an order of operations to bring everything in line.
CYA: 90ppm (darn tablets)
FC: 22.5 ppm
CC: 0 ppm
TC: 22.5 ppm
pH: 7.3
TA: 60 ppm
Ca: 225 ppm
Temp: 83 F
CSI: -0.740 (concerning for a plaster pool)
I was surprised to see the FC so high given the visible algae, but maybe the current owner was trying to nuke it before my walkthrough.
I see this as 3 separate problems: CYA, Algae, CSI, and I would love opinions on which to tackle first. I know the CYA will require that I drain and refill about half of the pool to bring it into range, so I'm inclined to do that first so that I don't add a bunch of chemicals just to drain half of them away. After that, I would re-test everything and maybe dump in some Calcium chloride to get the CSI up closer to neutral. Then SLAM for algae, and do final adjustments on pH/TA/Ca once complete.
How would you experts go about course correcting from the current state? How worried should I be about this very negative CSI? The pool was resurfaced about 4 years ago, but I know this can do harm to the plaster in the long term.
I am purchasing a home with a pool at the end of this week. I'm a first time pool owner, but I've been absorbing as much as I can here and am ready to hit the ground running with the TFP method. The pool is 32,000 gal gunite/plaster.
I bought a TF-Pro test kit and was able to grab a sample of water while doing my final home walkthrough yesterday so that I know what I'm facing once I take over. The current owner uses chlorine tablets in the skimmer basket and said they also throw 1 lb of cal-hypo shock in every week. They're clearly not a TFP reader. The water looks blue/clear, but i did notice some isolated green algae growth on the walls.
Here are my test results from the TF-Pro. I'm facing several issues and would love guidance on an order of operations to bring everything in line.
CYA: 90ppm (darn tablets)
FC: 22.5 ppm
CC: 0 ppm
TC: 22.5 ppm
pH: 7.3
TA: 60 ppm
Ca: 225 ppm
Temp: 83 F
CSI: -0.740 (concerning for a plaster pool)
I was surprised to see the FC so high given the visible algae, but maybe the current owner was trying to nuke it before my walkthrough.
I see this as 3 separate problems: CYA, Algae, CSI, and I would love opinions on which to tackle first. I know the CYA will require that I drain and refill about half of the pool to bring it into range, so I'm inclined to do that first so that I don't add a bunch of chemicals just to drain half of them away. After that, I would re-test everything and maybe dump in some Calcium chloride to get the CSI up closer to neutral. Then SLAM for algae, and do final adjustments on pH/TA/Ca once complete.
How would you experts go about course correcting from the current state? How worried should I be about this very negative CSI? The pool was resurfaced about 4 years ago, but I know this can do harm to the plaster in the long term.
