I'm a satisfied BBB'er trying to get my dad to follow suit...but he's very set in his ways. Here's his story....just filled his pool with lake water...pretty green looking...pool store told him to shock with about 20 bags or so of cal-hypo....set his filter to recirculate and vacuum to waste...and don't do anything else until they come to his house on Friday to check everything out. I was of course curious to his FC level so I snuck into his yard last night and measured...FC was 6. I'm assuming there is no CYA in the water. Checked again this morning and FC was 0. I poured in 3 more bags of cal-hypo. Checked again at 1:30, FC was 2. I put in a gallon of 10% bleach. In the meantime, he called his pool store and they told him to quit adding any more shock to the pool....just want him to put some sticks of trichlor in the skimmers and wait til Friday. What do you good people suggest? I was thinking I should add some CYA and target 20-30ppm....and shock accordingly.....he wants me to leave it alone until the experts come out.....they told him to NOT put any stabilizer in the water. I can't just sit idly by and watch him spin his wheels. Should I sneak over there and do what I know will help...or let him flounder and get bad advice from the pool store?