Common hot tub water problems and how to fix them…
| Problem | Cause | Solution |
|---|---|---|
| Cloudy water | Insufficient filtration | Check filters, power supply, and filtration Settings |
| Organic matter | Shock dose with a non-chlorine shock or replace some of the water | |
| Insufficient sanitiser | Test and correct sanitiser (chlorine or bromine) as required | |
| High pH or alkalinity | Test and correct pH and alkalinity (TA) as required using pH Reducer | |
| Too many dissolved solids | Add a water clarifier to froup the particles to aid filtration. Drain and refill some or all of the water |
|
| Water odour | Organic matter | Shock Dose using non-chlorine shock or replace some of the water |
| Low sanitiser | Test and correct sanitiser (chlorine or bromine) as required | |
| Low pH | Test and correct pH as required using a pH Increaser | |
| Musty smell | Bacteria or algae in water | Shock Dose using non-chlorine shock or replace some of the water. Re-test, if problem still apparent, add system flush and drain and refill. Multi-functional chlorine tablets are recommended to reduce the risk of algae. |
| Organic matter | Shock Dose using non-chlorine shock or replace some of the water | |
| Too many dissolved solids | Drain and refill some or all of the water | |
| Scum on waterline | Not washing before use | Always shower and rinse before use |
| Fake tan | Do not use hot tubs if wearing fake tan | |
| Foam | Re-rinse bathing costumes after machine washing or have a separate bathingcostume for the spa and only rinse with warm water. | |
| Skin or eye irritation | Organic matter build-up | Shock dose using non-chlorine shock,drain and refill some/all of the water. Test for correct pH. |
| Sanitiser is “combined” | Shock dose using non-chlorine shock, drain and refill some/all of the water. Test for correct pH. | |
| Erratic pH | Low alkalinity levels | Increase Alkalinity (TA) levels (consider adding buffer) This will avoid ‘pH bounce’ |
| pH resists change | High alkalinity levels | Decrease alkalinity (TA) with “slug dose” of pH Reducer (Add three capfuls of pH Reducer (6 heaped teaspoons) to a large plastic test tube already full of water. Shake/stir until dissolved. Turn off all pumps etc. place in middle of spa at elbow depth and empty avoiding disturbance to water. This is called a slug dose) |
| Only use the above steps as a guide, ensuring all safety precautions are taken and suitable eye protection and clothing are worn at all times. Always use the chemical manufacturers instructions. The measures given above are guidelines only. 1 Stop Spas accepts no liability whatsoever for circumstances arising from its use. | ||
