I was a bit desperate yesterday: We just bought a home with a 24000 gallon pool. Beautiful clear water but when I took a sample to Leslie's the salesman said we have to drain the pool now as the "TDS" is at 3500.
Knowing California is in a drought I did not want to empty the pool. Everything else was perfect except for higher phosphates ( 400) and the TDS. I bought the products to get the phosphates down and found this fantastic site that explained not to really panic on the TDS. Thanks TFP for being there!