Happy Hot Tubs - the best for your hot tub

Use this high quality PH Plus to increase the PH value of the water in your spa (7.2 to 7.6 is the optimum for spas).

If PH is too low, staining or corrosion may occur. PH Plus is also used to increase the Total Alkalinity of your Spa, Hot Tub or pool water. However if accurately needed to be increased, we sell Alkalinity Plus in our Shop.

Simply Test Your Hot Tub or Swimming Pool water and follow the instructions on the back of the tub to increase your PH correctly.

Really good product, works well, easy to follow instructions, competitively priced and with super quick delivery and great customer service ...

Rated by David Batt

A good product, good value and a fast service, thanks ...

Rated by stuart pheasant

A great company to buy from products delivered next day providing your order by deadline, always well packaged a and ...

Rated by Dave Green

Brilliant prices,service and delivery. I made a mixed order of several products, even so, it was with me within two ...

Rated by Carole Evans