I have been a member for over a year and have been relying on testing w the Taylor K-2006 Salt Kit. I have been very confident in my testing accuracy, but screwed up in the following ways. I had recalled reading somewhere that once CYA is set, salt is set and calcium is set the only way to change them would be to pump water out of the pool.
I last checked salt on 28 December 2016 it was 4200 ppm. It jumped to 5200 ppm by 21 April 2017 without any salt additions.
I last checked CH on 16 December 2016 it was 375 ppm. It jumped to somewhere between 550 ppm and 600 ppm by 21 April.
I questioned my readings. I went to the chain pool store. They confirmed I was higher than 500 but could not validate the number.
They agreed with my salt reading of 5200.
My local water is 50 ppm CH.
I check CL and pH two to three times weekly. TA and CYA monthly. I
I slammed the pool to 32 ppm at the end of December.
A chlorine reducer purchased at the pool store was used to bring the chlorine down after slamming. I had some low pH so I needed 3 boxes of Borax to bring things back up to normal.
After that, I have kept the pool looking beautiful and in TFP specs w regard to FC, TA, pH and CYA.
Only city water at 50 ppm CH has been added. Baking Soda used to maintain TA around 60 - 65.. Stabilizer to get CYA to 75-80. Daily acid from a stenner pump and the swcg to produce chlorine.
I suppose the answer for the jump in CH is due to the occasional filling of an inch or two of the city water. But, a 35% increase???
What explains the rise in NaCL? No salt was added! What could have happened?
There were two indicators: My cell plates were accumulating calcium deposits more rapidly and my daily dose of muriatic acid went from 6 oz to 10 oz to maintain a pH of 7.7 over the past 3 months.
Hope this lays out the issues clearly.
Thank you for your analysis.
I last checked salt on 28 December 2016 it was 4200 ppm. It jumped to 5200 ppm by 21 April 2017 without any salt additions.
I last checked CH on 16 December 2016 it was 375 ppm. It jumped to somewhere between 550 ppm and 600 ppm by 21 April.
I questioned my readings. I went to the chain pool store. They confirmed I was higher than 500 but could not validate the number.
They agreed with my salt reading of 5200.
My local water is 50 ppm CH.
I check CL and pH two to three times weekly. TA and CYA monthly. I
I slammed the pool to 32 ppm at the end of December.
A chlorine reducer purchased at the pool store was used to bring the chlorine down after slamming. I had some low pH so I needed 3 boxes of Borax to bring things back up to normal.
After that, I have kept the pool looking beautiful and in TFP specs w regard to FC, TA, pH and CYA.
Only city water at 50 ppm CH has been added. Baking Soda used to maintain TA around 60 - 65.. Stabilizer to get CYA to 75-80. Daily acid from a stenner pump and the swcg to produce chlorine.
I suppose the answer for the jump in CH is due to the occasional filling of an inch or two of the city water. But, a 35% increase???
What explains the rise in NaCL? No salt was added! What could have happened?
There were two indicators: My cell plates were accumulating calcium deposits more rapidly and my daily dose of muriatic acid went from 6 oz to 10 oz to maintain a pH of 7.7 over the past 3 months.
Hope this lays out the issues clearly.
Thank you for your analysis.