My pH is hard to maintain. Why?
Everything that enters your spa has a pH that can raise or lower your pool or spa’s total pH. Check the following:
- Tap water, depending on the area of the country, can either have a low or high pH.
- Overestimating the amount of pH Decreaser or pH Increaser needed is often the problem.
- Using Bromine or Trichlor tends to lower pH over time while using shocks like Calcium Hypochlorite or Lithium Hypochlorite may raise the pH over time.
- High bather loads will tend to lower pH.
- Swimmer wastes, such as perspiration, urine, saliva and other body oils will lower pH.
- A high alkalinity reading will raise the pH.
- Dirt, debris or leaves that blow into the pool as well as rain that is often acidic will lower pH.
- Salt chlorine generators will raise the pH over time.
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