The documented problem was with the AquaChem kit but I believe the HTH kit has a similar problem. Here is the thread
http://www.poolforum.com/pf2/showthr...light=aquachem
Re: Do I need to add calcium?
The documented problem was with the AquaChem kit but I believe the HTH kit has a similar problem. Here is the thread
http://www.poolforum.com/pf2/showthr...light=aquachem
Retired pool store and commercial pool maintenance guy.
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