Water balance: pH and Total Alkalinity

The pH is a measure of the acidity or alkalinity of the water in your spa. You should maintain a pH between 7.2 and 7.6.

A low pH can cause skin irritation and discomfort to bathers, and in the long term it may even lead to corrosion of the spa equipment. A high pH will reduce the effectiveness of your disinfectant (particularly if you use a chlorine-based product), and can lead to calcium deposits on walls and pipework.

HTH pH Plus
pH Plus
 9,90€ 
In stock
HTH pH Minus
pH Minus
 10,20€ 
In stock
HTH Alkanal pH stabiliser
Alkanal pH Stabiliser
 9,90€ 
In stock
HTH pH pack
pH pack
 26,40€ 
In stock
Box of 6 HTH pH Plus
6 x pH Okys
 48,60€ 
In stock
Box of 6 HTH Alkanal alcalinity increasers
6 x Alkanal pH Stabiliser
 45,60€ 
In stock
Box of 6 HTH pH Minus
6 x pH Minus
 51,90€ 
In stock
HTH Phenol red tablets for pH
HTH Phenol red tablets for pH
 16,80€ 
In stock
ICO Spa connected water analyser
ICO Spa
 399,00€ 
In stock
ICO Pool connected water analyser
ICO Pool
 399,00€ 
In stock