Affordapool pH+ / Increaser / Plus
Sodium Carbonate - AKA pH increaser, pH raiser, pH Plus (+)
The simple way to increase your water pH value to the correct level.
Just add 11g to a 1000lt spa or 450g to a 10,000 gallon pool and check to see the new level after 30mins.
Always make sure the Alkalinity level is correct first as this can lead to false readings.
It's best to increase in stages rather than trying to achieve in one dose.
Quality UK produced product