I opened my pool 2 weeks ago and the water was clear(with some leaves and debris at the bottom). I have been using the local pool store and its chemicals but got frustrated with the cost. I have added some of their chemicals to attempt to balance the water including lo n slo, optimizer,etc. After 12 bags of shock I was getting no chlorine reading. That's when i discovered the BBB approach and it made sense. I am using the HTH 6 test and got these readings
ch - 290
cya - 90
according to the pool calculator I needed to add 1.3 gal of bleach which I did and 1.8 box of borax. I did that and my chl reading is unchanged so 2 days ago I had the same readings and added the same. An hour later the chl was dropping so I added another gallon of bleach. The level dropped to the 5.1. We have well water in this area and live basically in a forest so in previous years I haven't been able to get a reading till I drop the phosphates below 300. i did that this time and still can't get the reading up. Also the pool store is getting a zero reading when they measure my chl. I have had the pucks in a chlorinator open to 10 for over 2 weeks. Help!