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Hot Tub Troubleshooting Guide
Most common problems & solutions
| Problem |
Possible Cause |
Solution |
| Excessive scaling |
Water out of balance |
Take water sample to your nearest pool shop for analysis |
| Eye and/or skin irritation |
Excessive sanitiser levels |
Dilute spa water with fresh water |
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Build up of disinfection by-products |
Dilute or completely refill the spa with fresh water |
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Allergic reaction to sanitiser |
Consider changing to a chlorine/bromine free system |
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The pH outside the acceptable range |
pH over 7.6; reduce with Spa pH and alkalinity reducer (Dry Acid)pH under 7.2; raise with Spa pH increaser (soda ash) |
| Foaming |
Build up of contaminants – body oils or cosmetics |
Treat with Spa anti-foam |
| Smells |
Build up of organic pollution and/or combined chlorine |
Shock dose with spa non-chlorine shock |
| Staining on the shell |
High concentration of metals in the water |
Treat with anti-scale or take a water sample to your local pool shop for analysis |
| Coloured water |
As above |
As above |
| Cloudy water |
Low sanitiser level |
Test regularly and maintain sanitiser level; 2-5mg/l (chlorine) 4-6mg/l (bromine) |
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Ineffective filtration |
Check cartridge filter; either clean using spa cartridge cleaner or replace filter |
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Suspended solids |
Treat with spa water clarifier to aid filtration |
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Build up of dissolved solids |
Drain and refill with fresh water |
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