Recent content by RSpool

James, My plastering company insured me the current ingredients of the plaster mix are the same as in 1981, you are the second person recently to mention that asbestos was in the old mix which improved it's performance. Too bad there is not a good replacement. I'm working on lowering TA and...

James, I have been using the LSI calculator for 16 months, trying to better understand how each chemistry factor effects the other. I was not aware of CSI until joining this forum and am very willing to use it as well. My Taylor kit has instructions on how to do the salt test but it doesn't...

Allen, I did not read your reply until this morning so my test was 24 hours after adding 32 oz. acid. pH dropped from 8.1 to 7.9 but TA remained at 130, LSI is now +0.29, finally back into to acceptable range. FC was at 0, added 26 oz of 10% liquid chlorine, pH will be up again tomorrow...

James W, I added a quart of acid today, hopefully pH and TA will be lower tomorrow. I suspect it may take more but this will be my target. Thanks Richard

I downloaded the PoolMath app per James W's suggestion. I thought it is was an LSI calculator but it appears to be a dosing calculator, it this correct? The Taylor kit I have has salt test instructions on the label but no reagent, I thought it was used for salt pools. Learned something new!

mknauss, Thanks for your reply. My interest in CO2 was to lower pH without acid but you say it won't lower TA. My interest in borates was to slow the rise of pH, but the negative is it raises TA. So regardless of whether or not I use CO2, if I continue with borates, I will also have to use...

James W, Thanks for your reply. I've had no luck following industry standards for TA so will try your recommendation for TA and pH. I have been using LSI calculators by Orenda Tech and NPC (it includes borates), both automatically adjust for carbonate alkalinity. I'm happy to try the TFP...

ajw22, I added pool details to signature, thanks for the reminder. There are no water features or spa spill over. Stopped trichlor Oct 2018, replaced with 10% liquid cholorine, CYA dropped from 80 to 50. TA was 90 when I added first 15# dose of borates on Dec 13, 2018, jumped to 130, added...

James W, I noticed this discussion about CO2 vs. acid, perhaps you can help on an issue with my 15,000 gallon gunite/plaster pool I had built in 1981 in Atlanta, no automation, DE filter, using tri-chlor tabs. I had it replastered Oct 31, 2016, followed NPC start up procedure, and by end of...