First post, but I've been a long time lurker. I have a 18000 gallon plaster pool that we built in 2013 and I've been using the BBB method since day 1 to maintain it with absolutely zero issues. I've learned a lot here and I've very grateful.
Last week we received a new spa. Based on all of the research I did I decided to go with bromine. I started it up but I couldn't get the bromine levels to stay above 0. Did more reading here....ran a bottle of Leisure Time Jet Clean per the instructions on the bottle. I'd seen some nasty looking pictures on the web, so I was a little disappointed that I just made nice white foam. Regardless, I drained, rinsed, and refilled.
I'm having the same issue still. The spa has been left unoccupied all day, and here's what I came home to:
bromine <1.25 ppm (using the FAS-DPD test, solution was pink but went clear with a single drop of titrant)
I should have 30 ppm bromide bank (added 60g of NaBr at fill, tub is 380 gallons)
Haven't added boric acid to this fill yet
After the fill I added bleach (160 mL of 8.25%) to shock (~48 hours ago).
Tub has an ozonator, and I've got a single tablet floater that's cranked wide open with 5 bromine tablets in it. Any ideas as to why I'm not maintaining a significantly higher Br concentration?
Thanks in advance!