Everybody knows that we need to sanitise water to destroy bacteria, but at what cost to our families health and our fragile environment? In addition the over use of traditional chemicals such as chlorine or bromine in your spa result in strong smelling water with harsh unwanted side effects on your skin, eyes, chest and even your spas equipment, often ruining heaters, seals, spa pumps jets etc etc Furthermore.. the headache of having to do the time consuming multiple daily measurements and adjustments. Even with all of this time and energy wasted...….Is your spa really as clean as you think? (More of the science bit)Maybe not! But to understand why, you firstly need to know about the real cause of bacterial build up, an industry secret about a foul, slimy substance that lurks unseen on surfaces and in the pipe work and of your spa called Biofilm! For years scientists have understood that to thrive, bacteria create a layer of slime in which they shelter, feed and breed. Over time this slime increases in thickness, creating serious additional problems. Consequently, only high levels of chlorine or bromine can only kill bacteria in the outer layer of an established Biofilm leaving the unharmed bacteria below to continue breeding.FACT:Did you know that 99% of all bacteria live in the Biofilm, just 1% actually live in the water itself and it is only these so called 'free floating' bacteria that we are able to kill with traditional sanitiser's such as chlorine or bromine!! The answer is AquaFinesse!In one simple weekly treatment our patented environmentally friendly formula gets to the root of the problem by loosening this layer of slime from the surfaces, it is then rinsed away by the action of the water and prevented from reforming in a deep clean, before you even use AquaFinesse!Result = a dramatic reduction in the levels of bacteria, thus needing only the minimal amount of sanitiser in your hot tub water!.