I think i have the algae under control, it helps to have kids swimming and get the pool stirred up. No more algae, FOR NOW. Running my salt cell for 6-8 hours, my FC is about 1-2 on test strips, it usually is higher when cell runs for that amount of time about FC 4-5 (before I added the sodium bromide). But my liquid test is showing 4-5, it is an OTO reagent so it tests bromine also. I think the chlorine is still converting to bromine, that is the reason the liquid test is showing the 4-5 reading, its the bromine reading. I added 18 ounces of the sodium bromide ("The Yellow Stuff") in 25,000 gallon pool when I started this a couple of weeks ago. Is this what is happening? How long should it take to burn thru the sodium bromide. My wife will not let me put clorox in pool, pool store does not sell liquid chlorine. Any alternatives on large dose of chlorine shock to burn thru sodium bromide?