Use and Care Manual

HTH Spa
™
Problems and Solutions
Problem Possible Causes Solution
Foaming Buildup of body oils,
cosmetics or other
contaminants
Use of certain
algaecides
Buildup of
contaminants due to
improper filtration
and/or oxidation
Low calcium hardness
1. Use HTH Spa
™
Defoamer to remove
and prevent foam, or
drain spa and refill
with fresh water
2. Be sure to use HTH
Spa
™
Non-Foaming
Algaecide to prevent
this from occurring
3. Clean your filter with
HTH Spa
™
Cartridge
Filter Cleaner or
oxidize with HTH
Spa
™
Non-Chlorine
Oxidizer
4. Raise hardness using
HTH
®
Calcium Plus
Scum ring Body oils and dirt Clean spa surface with a
scrubbing pad designed
for your spa surface
Corrosion
of metal
parts
Low pH Use HTH Spa
™
pH
Increaser to raise pH
and maintain the pH to
7.2 - 7.6
Algae Not enough free
available chlorine or
low bromine residual
1. Adjust pH to 7.2 - 7.6
2. Shock treat with
HTH Spa
™
Shock
3. Use HTH Spa
™
Non-
Foaming Algaecide
as needed
High pH 1. Use HTH Spa
™
pH
Decreaser to lower
pH to 7.2 - 7.6
2. Shock treat with
HTH Spa
™
Shock
Stains Metals present in
water
Use HTH Spa
™
Metal
and Stain Control to
remove stains
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