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I have been pondering for several years why maintain Total Alkalinity in salt water pool. This year, I totally abandoned maintaining T.A. and observed no negative isdues I could observe. I used half the acid I used in previous seasons. Used no baking soda, and had no problems even at end of...

I have a 30,000 gallon saltwater pool. I have always maintained CYA at around 40. We changed liner, filter cartridges, and water a couple months ago. I have never brought my CYA level up. The only CYA in the pool is what it got from 8 pucks of trichlor. Due to rain, I have probably let 1200 to...

I have a tf 100 test kit. A chlorine discrepency always exists between the Method using R-0870 / R-0871 and the R-0600 test. Tonight I tested using the R-0600 and it showed my free chlorine as being well over 5 ppm. By drop 2, the color was darker than the 5 PPM color on the scale. I did not...

I have an odd question that I would welcome your thoughts on. I have for the last couple of years contemplated on adding a cartridge filter down stream of my sand filter. It should work. The sand will get 95% of the trash and the cartridge will catch 99% of what the sand misses. Assuming...

According to my CYA test I have almost none. I can see the black dot with the tube overflowing. According to a very expensive testing machine at the hardware store, my CYA is 20.

I have a question about free chlorine maximum levels. I have always used 5 as the maximum number I would swim in, but tonight I started reading some info on the internet that seemed to conflict that a bit. I was not looking for this, but found it while I was looking for info. about kill times...

I have a question about a particular use of copper as an algae killer. I know the staining issues with copper and am aware that many do not like it for this reason. I use copper in a slightly different manner and have had wonderful success with it. On yearly opening, and on the rare occasion...

I have read posts and learned from this forum for a couple of years. I finally joined today to answer a question I have that no one seems to be able to give me a logical answer to. I have an above ground pool. I have maintained it for several years. I Use HtH 10% liquid Sodium Hypochlorite...