I am new to TFP (like many, I have taken away much advice from this forum before finally joining today). We have just finished construction on a new in ground pool (not our first pool, but definitely new). Rectangular Pebble sheen, 16k gallons. First exposure to a UV & DE filter system, so lots to learn in that regard . From previous pool troubles in Arizona, I am very familiar with tablets and ever-increasing CYA levels, so I am definitely a bleach convert in the making with lots to learn about that as well. Looking forward to greater pool care success as part of the TFP forum.