Chlorine Lock ????

[poolrescue30]

Thanks CarlD , couldn't have done it without you, Chem_Geek and the other posters. It was a very long fight, wors one I had in 11 years of pool ownership. I did a CYA test myself, once yesterday and again today CYA is clearly 50 using the tube and black dot test, so I think we're in good shape, thanks again.

[CarlD]

I guess that means it's time to put your pool to an unusual use...
.
.
.

GO SWIMMING!!!!!