Water Chemistry 
Studies suggest that up to 99% of all problems and issues surrounding hot tubs arise as a direct result of poor water chemistry.
A lot of hot tub salesmen and the internet may often try to tell you that the hot tub that you desire to purchase, is in fact a self cleaning hot tub! Sounds amazing but unfortunately these tubs do not exist (yet)! Although you can indeed purchase tubs that reduce the time spent maintaining your tub, you would of actually saved more money by just following the simple guides and training that we issue to anyone who purchases a hot tub directly from us.
The only way to ensure that your hot tub stays clean and safe is to maintain the water chemistry properly.
The main reason that the heaters in your tub will fail, and other parts such as seals and gaskets will fail is almost certainly due to simple chemistry. If the pH of the water is lower than 7, the water is desperate to steal molecules from other elements. Metals are particularly good at providing these molecules and the loss of them will ultimately result
in failure of the hot tub equipment through the means of corrosion. moreover, pH is also what adds to the feeling of sore eyes (commonly mistaken with the amount of chlorine in the water).
The total alkalinity of the water is often ignored because the assumption is made that TA is the same as the pH. Although to some extent this is true, the pH is actually the fine tuning. TA is more in relation to the harness of the water, harder water is more acidic whereas softer water is more alkaline.
For more information surrounding water chemistry; pop into Hot Tub World to ask as many questions as you like!
