I've been on BBB since start up of our new pool on Memorial Day. Everything has been perfect until yesterday, noticed a slight green tint in the spa. The spa and pool water recirculates through a waterfall so it's all the same. Checked CL and PH and all was close, added a bit of CL and acid to bring things back in line. Tonight same thing - green tint in the spa water and swimmers complaining of burning eyes, so did a complete test.
I added 15 lbs of Leslie's Calcium Hardness Plus, and 48 oz (by volume) of baking soda. I've been bringing the CH up slowly over the past few weeks, although haven't added any in about two weeks before tonight. All the numbers except CH seem OK to me, but wondering why the green tint and red eye?????