I recently began following the Trouble Free Pool protocol and started using liquid chlorine bleach in place of 3" tablets. I switched after having to pump out about 3' of water to get my cyanuric acid levels down from about 100 to 50. The pool is consuming about a gallon of Chlorox bleach (roughly $3.00) every other day to keep it at the proper level of chlorination.
Here in Texas is has been pretty hot so chlorine doesn't last very long, but when we used the 3" tablets it was not costing us anywhere near $3.00 every other day. Is using liquid bleach simply more expensive or is that just the price I'll pay to avoid having to pump out my pool and replace water ever year or so to keep the cyanuric acid levels down?
All our levels are within range. Our target FC level is 6 with a minimum FC of 4 since our cyanuric level is about 50. Our CSI is right where it should be.
18,000 gallons Chlorine Pool
Pentair 520 Cartridge Filter
Pentair Intelliflo Variable Speed Pump
Polaris 280 with Polaris booster pump
TF-100 test kit
Pentair/Rainbow 320 auto chlorinator