Troubleshooting

Quick Diagnostic Flowchart

Problem: Tub Not Cooling

1. Is power strip on? (green light)
→ No: Check outlet, circuit breaker, extension cord
→ Yes: Continue to next step
2. Is chiller running? (fan noise)
→ No: Check chiller power connection
→ Yes: Continue to next step
3. Are valves open?
→ No: Open both blue valves
→ Yes: Continue to next step
4. Is filter clean?
→ No: Clean/replace filter
→ Yes: Check chiller coils. If issue persists, call support
💧 Water Quality

Cloudy/Murky Water

Overview: Cloudy water is almost always caused by contaminants entering the tub — things like sweat, lotion, body oils, or soap. The ozone system disinfects but isn't designed to handle heavy buildup, so prevention is key.

Causes:

  • Sweat, soaps, detergents, body oils, hair products
  • Residue buildup in tub

Solutions & Prevention:

  • Rinse before use - Remove sweat lotions, oils, soaps
  • Check filter - Install new filter recently
  • Run ozone longer - Use timer push down 4-6 dials (2-3 hours) video
  • Drain & refill - Easiest solution for persistent cloudiness
  • Balance water - Use Spa Up/Down for pH

Bubbles or Foam on Water Surface

Overview: Some bubbles are normal from the ozone system, but persistent foam usually means extra contaminants (sweat, soaps, oils, hair products) have entered the tub.

Causes:

  • Normal ozone bubbles from jet
  • Sweat, soaps, oils buildup, hair products residue

Solutions & Prevention:

  • Rinse before use - Especially after sauna
  • Replace filter & water regularly:
  • Residential: Every 2-3 months
  • Commercial: Monthly or as needed
  • Control water line - Use attached sponge for surface buildup
  • Drain & refill - If foam persists

Balancing Water Chemistry

Overview: If you notice your water quality to decline and the ozone system and filter aren't enough - even after filter and water changes - proper water balance is the key to getting it back on track. Checking and adjusting pH regularly will help keep your water clear. 

Signs of Imbalance:

  • Cloudy or discolored water 
  • Readings outside the range on pH test strips Cloudy or discolored water

Balancing Solutions:

  • Use Sirona solutions sold by Cold Creek Tubs 
  • Test pH - Use test strips (instructions below) 
  • Target pH - 7.2-7.6 Ideal Range 
    • pH too high? - Use Spa Down (sodium bisulfate)
    • pH too low? - Use Spa Down (sodium carbonate)
  • Retest after circulation - Allow ozone and circulation to run before adding more 

How to Use Test Strips: 

  • Dip one test strip into the water and remove it 
  • Hold the strip level for 10-15 seconds without shaking off excess water 
  • Compare the strip's color pads to the chart on the test strip bottle 
  • Adjust as needed with the chemicals (Sirona instructions below)

Tips for Adjustments: 

  • Little goes a long way - small, gradual adjustments 
  • Go slowly - cold water dissolves chemicals more slowly than hot tubs
  • Retest after circulation - always wait before adding more