Creeping pH

[Pool in Carolina Blue]

Richard:

Yes, I am manually adding bleach as the source of chlorine. I have an in-line feeder but I stopped using it when I found this site! I have some pucks in the feeder but it is turned off. I did test my well water for CH and there was no trace at all. I did not test for TA though.

My pool is five years old and it does not have a cover. I am in Charlotte, NC and the pool gets direct sun in the morning up through 1:00 PM. I agree that it is unusual to hold the 5 level for this period of time, but your point is well taken in that maybe my level has been above 5 and I just did not know it. I have a Taylor kit (DPD) that only reads up to 5 so maybe it has been at 10 or higher and I have not differentiated the color at these darker levels. Would the FAS-DPD be a better choice?

I moved into this home a year ago and to the best of my knowledge, it has never been replastered. I will follow your advice and try Ben's Lowering Your Alkalinity procedure. Another question, since my spa "feeds into" my pool via a waterfall and the chemistry for a pool is different for a spa, is there a way for me to attain different levels of chemicals for each vessel?

Thanks in advance for your help,

Mike

[chem geek]

Would the FAS-DPD be a better choice?

Mike,

Yes, FAS-DPD would be a better choice, especially since you will be keeping chlorine levels high (for your spa). You will be able to measure high chlorine levels and it will be more accurate as well. You can either get Ben's kit or an appropriate Taylor kit (the K-2006 would be the one to get unless you already have another Taylor or similar kit with other components in which case you could get the K-1515-A for just the chlorine FAS-DPD part).

Richard

[Pool in Carolina Blue]

Thanks for the help Richard. I will order Ben's kit.


Mike