Hot Tub Things pH Lock - 32 oz

It doesn't really lock in anything. Levels continued to fluctuate even without use. Chemical levels continue to change. This did nothing to help or hurt. Just a waste of money and landfill space.

This arrived as a sticky glob of white goo in fluid in the bottle. Once all the fluid was poured into the spa, the goo would not come out. It is too thick. Seems like a waste of money.

This helped some but I still get some fluctuations.

Great service. Nothing to complain about.