Has been 3 weeks since started BBB from a chlorine demand condition .Water has remained excellent .I have had to add bleach each day to get back up above 5 ppm as normally find between 3-4 each day. Averaging roughly $1.03/day based on GV bleach at $2.98 for 1.45 gal

Starting to think that closing is less then 4-6 weeks and was wondering what the process is with the BBB method? I have inground and use a Loop Lock mesh cover for winter .Will close for sure by Oct st as here in Western Pa the nights are allready in 50