Automatic pH Controllers


What is it? Why is it important in a swimming pool?

  • pH is a measure of the acidity or alkalinity of a solution

  • It is important to keep pool pH at, or very close to, 7.4  for several reasons
  • Human eyes have a pH of 7.4 - so correct pH will avoid red, stinging eyes
  • Chlorine compounds used for pool sanitizing are at their most efficient at pH 7.4
  • The pool surfaces become rough and scaly, and the sand-filter turns to stone
  • Those are very expensive problems
  • Circulation is reduced and the pool is in serious danger of going green
  • Low pH corrodes metals and creates metal oxides, which stain pool surfaces
  • Grout, plaster and the pool surround are dissolved by the acidic water, leaving the pool-owner with another expensive, unnecessary bill
  • If pH is outside the ideal range of 7.2 to 7.6 it will damage your pool and cost you money
  • The solution is an Automatic pH Controller
  • These devices measure the pH of the water as it circulates
  • The regulator injects tiny quantities of Hydrochloric Acid (which is a much cheaper chemical than pH-minus powder) to bring the pH back to the optimum of 7.4
  • Once the pH of the water has been stabilised the consumption of Pool Chemicals will plummet, returning significant cash savings for years to come and making the pool a more pleasant place to be
  • Lime-scale will be eradicated, the grout, pump and filter will last longer and the water will have a better ‘feel’ and colour
  • All in all, an Auto pH Regulator is a sound investment


We supply all plant and equipment featured on this website  All our work is Guaranteed; Parts and Labour

For free and unbiased advice, a site visit or no-obligation Quotation*, please make initial enquiries by email. Tell us a little about your pool problem and include a daytime phone number. Thanks, we look forward to meeting you soon

*We only offer Quotations: - a fixed, agreed price that cannot, and will not, be increased. We do not give 'estimates', as an estimate offers no guarantee of final price.


Note: - Please contact our recommended Pool Professionals for supply and installation of all pool-related services: - 

Andalusia and the Costa del Sol - Pool Safety SpainPool Safety Spain

Nerja area - This email address is being protected from spambots. You need JavaScript enabled to view it.

Each of the above offers years of experience, free unbiased advice and excellent, Professional service.


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Ken Walker - MyPoolGuru©