Why is PH important?
What is pH
• Uncomfortable, irritating
• Corrodes surfaces
• Sanitizer dissipates quickly
- potential Hydrogen
- The measure of the acidity or basicity of a solution
- The relationship between Hydrogen (H+) and Hydroxyl (OH-) Ions
- A scale between 0 and 14
- Logarithmic
- pH 7 is considered neutral
- pH less than 7 – acidic
- pH greater than 7 – basic or alkalinity
• In hot tub water, it is important to maintain pH in the range of 7.4 – 7.6
o Bather comfort
o Sanitizer efficiency
o Protection of surfaces from scale, stains, corrosion
o Clear water
o Fewer problems / easier maintenance
Why Does it Change
• Frequent product additions
Ozone - high
• Bather load / bather wastes
• Aeration
• Fill water
- Every product has a pH
Ozone - high
• Bather load / bather wastes
• Aeration
• Fill water
Problems Associated with pH:
When low:
• Uncomfortable, irritating
• Corrodes surfaces
• Sanitizer dissipates quickly
When high
- Uncomfortable
- Scale forms more readily
- Sanitizers weaker
o Cloudy water (calcium)
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kath creery