Hi All,
Long time lurker. I’ve been battling a calcium scale issue the last few years and trying to get answer. Will keeping CSI in negative reverse calcium scale on its own and dissolve back into water?
I have the classic chalky areas on walls, floors, steps and seats. I have used a piece of 600 grit sandpaper to wipe across surface and I see a white trail that exposes the nice sparkle blue color of tub. Can almost scratch with finger nail in some places and expose blue surface. Also have done acid test. I’m sure there is some calcium silicate too but not bad. I thought I was being meticulous on ph but maybe possible I let it drift as I was learning. I also thought I had a bad salt cell and swapped it this year.
Long story short is I added SWG in 2016 and almost immediately started having issues. Called (Tallman) manufacturing and they suggest jacks magic and I’ve tried scaletec. I have a jug of scaletec now but haven’t dropped it in. Threw some in at closing and during winter.
I gave up on the SWG a few times since install and went back to pucks for fear it was causing issue. The first summer having SWG it’s possible I let ph get high but even then I always brought it down. Since then I am on top of ph but no avail on scale.
This is year I plan on being OCD about CSI in hopes keeping it negative will reverse this scale. That’s what I hope you all can tell me or how to tackle this. I use Taylor 100 kit and have plugging numbers into pool math to make sure CSI stays negative. The water looks great right now which shows off scale.
Numbers have been about the same since April 24th. I did SLAM the pool on April 22nd to FC 28 ppm and let it drift back down to FC 7. I didn’t stop SWG but backed it down to 20%. Only chems added so far is algaecide and clarifier. Shocked with cal hypo. Started on pucks right after open and shocked because algae was eating my FC each day.
FC 7
PH 7.2
TA 80
CYA 80-85
CH 250 I added some this year to reach that. Historically very low CH. started year at 160
Salt 3500
water temp 76
This scale is driving me nuts and look forward to your replies.
Thanks,
Carl
Long time lurker. I’ve been battling a calcium scale issue the last few years and trying to get answer. Will keeping CSI in negative reverse calcium scale on its own and dissolve back into water?
I have the classic chalky areas on walls, floors, steps and seats. I have used a piece of 600 grit sandpaper to wipe across surface and I see a white trail that exposes the nice sparkle blue color of tub. Can almost scratch with finger nail in some places and expose blue surface. Also have done acid test. I’m sure there is some calcium silicate too but not bad. I thought I was being meticulous on ph but maybe possible I let it drift as I was learning. I also thought I had a bad salt cell and swapped it this year.
Long story short is I added SWG in 2016 and almost immediately started having issues. Called (Tallman) manufacturing and they suggest jacks magic and I’ve tried scaletec. I have a jug of scaletec now but haven’t dropped it in. Threw some in at closing and during winter.
I gave up on the SWG a few times since install and went back to pucks for fear it was causing issue. The first summer having SWG it’s possible I let ph get high but even then I always brought it down. Since then I am on top of ph but no avail on scale.
This is year I plan on being OCD about CSI in hopes keeping it negative will reverse this scale. That’s what I hope you all can tell me or how to tackle this. I use Taylor 100 kit and have plugging numbers into pool math to make sure CSI stays negative. The water looks great right now which shows off scale.
Numbers have been about the same since April 24th. I did SLAM the pool on April 22nd to FC 28 ppm and let it drift back down to FC 7. I didn’t stop SWG but backed it down to 20%. Only chems added so far is algaecide and clarifier. Shocked with cal hypo. Started on pucks right after open and shocked because algae was eating my FC each day.
FC 7
PH 7.2
TA 80
CYA 80-85
CH 250 I added some this year to reach that. Historically very low CH. started year at 160
Salt 3500
water temp 76
This scale is driving me nuts and look forward to your replies.
Thanks,
Carl