Hello all. I've just registered and this is my first post, but I have obtained a wealth of information from this site, so thank you all. Our pool was completed in December 2012. We started with trichlor pucks and by July the CYA was at 98, at least according to Leslie's, which is another issue I will try to get to later. So I started to search for information and found TFP. I immediately switched to liquid Cl and then found the Liquidator. I was able to connect the output from the Liquidator to the drain plug on the basket in front of the pump and the input to the Liquidator to the output hole from the puck feeder that I removed. I can post pictures if the setup is of interest. I also recommend wrapping the Liquidator in insulating wrap for high sun locations. White stuff (WS) appeared immediately at a pH of 7.6-7.8, CYA ~100(?), TA~100, CH ~250. So I kept the pH at 7.2 and TA~70 but the WS was still a problem. I had to take the flow meter out because it would clog almost immediately and I changed the small ball valve with a larger one to try to improve the flow. Every day I would have to turn the valve back and forth to try to break up the scale. I had to clean the parts in acid about once every two weeks. So I was a bit worried about constantly having to deal with this. But then I found the magic dust. Borates. 10 boxes of Borax and three gallons of acid for my 12,500 gallon pool. It took a bit more acid to bring the pH down into range. I am waiting on some LaMotte strips to test my borate level. The drop test seems to be impossible to find now, as the Canadian company can't ship to the US. Anyway, it has not been a week yet and the WS is gone. Just this evening I put the flow meter back on. From what I can tell so far the borates have significantly reduced my Cl usage. I will have to follow up on this, but I was using about 1/2 a gallon per day, and now it seems to be 1/4 gallon. Still probably too early to tell. My pool was always sparkling clear, so I have not noticed a significant difference in the sparkle of the water. I still have to add acid about every two days. So, back to the CYA issue. After getting my 98 reading from Leslie's I drained about 40% and refilled. The next month Leslie's tests again and gets in the mid 90's. I'm perplexed. So, before adding the borates I had them test again, 100. !@#!#@$. OK, so I am going to drain 1/2 and refill and then add borates. As I am draining my TF100 test kit arrives. I test the CYA and I get maybe 40. You have got to be kidding me! So I stop draining and refill and then the next day I take a sample to a different Leslie's and they test at about 40 (after the refill). I looked at their dot for myself. I came back and tested for myself and got maybe 20. Hardly any cloudiness in my samples. So I do not trust Leslie's, but I am a bit worried that the R0013 that I received may not be what it should. Is that possible/probable? I ask because we have had 100 degree full sun days and I do not seem to be losing much Cl. If I have such a low CYA in full sun 100 degree heat, wouldn't you think I would lose Cl like crazy? Maybe it's the borates? I also have a UV sanitizer. Which leads me to my last comment, I keep my Cl in the 1-2 range. Leslie's has never measured any CC. I did have 2 small algae spots back when the CYA was probably high and the Cl dropped to zero, but I was able to clear them up easily by bringing the Cl back up. I'll stop there and await any comments or questions. It may be that I should post some of this in other threads.