Common Water Problems
Find practical help for cloudy water, foam, smells, colour changes and balance issues. These guides focus on what to check before adding more chemicals.
What this covers
Cloudy water, foam, green water, smells, balance issues, filters and circulation checks.
A calmer order to follow
Look at the symptom
Cloudiness, foam, smells or colour changes are clues, not a final diagnosis.
Test before treating
Check sanitiser, pH and alkalinity before adding more product.
Check the routine
Filters, circulation, recent use and water age can matter as much as chemicals.
Retest before use
Confirm the water has changed as expected when guidance says a follow-up check is needed.
Start with what you are seeing
These guides help owners work from symptoms to sensible checks. As new approved articles are published in the SpaWise admin portal, they can appear here automatically when tagged or categorized as Common Problems.
Why Is My Hot Tub Chlorine or Bromine Low? Common Reasons Sanitiser Drops
A beginner-friendly guide explaining why chlorine or bromine can test low in a hot tub and what owners should check first. Covers heavy use, body products, pH and alkalinity, dirty filters, high water temperature, old water and repeated low sanitiser readings.
Why Is My Hot Tub Foamy? Common Causes and First Steps
A beginner-friendly guide explaining why hot tub water can become foamy and what owners should check first. Covers detergent in swimwear, lotions, body oils, low sanitiser, pH and alkalinity, dirty filters, anti-foam products and when water may need replacing.
Why Has My Hot Tub Water Turned Green? Algae, Metals and Sanitiser Explained
A beginner-friendly guide explaining why hot tub water can turn green and what owners should check first. Covers low sanitiser, algae, metals, pH and alkalinity, dirty filters, recent use, product residues and when draining and refilling may be the better option.
Why Is My Hot Tub Water Cloudy? What to Check First
A beginner-friendly guide explaining why hot tub water can become cloudy, milky or hazy, and what owners should check first. Covers sanitiser levels, pH, alkalinity, filters, recent use, everyday contaminants and when old water may need replacing.
Why Does My Hot Tub Smell? Chlorine, Bromine and Musty Odours Explained
A beginner-friendly guide explaining why hot tubs can smell strongly of chemicals, musty, stale or unpleasant. Covers low sanitiser, used-up sanitiser, pH and alkalinity, dirty filters, old water, cover issues, waterline build-up and body product residues.
Why Is My Hot Tub Water Cloudy?
Understand the common reasons hot tub water turns cloudy and what to check before adding more product.