The Shower Doctor - Home of TiosanĀ® Safewater System


Tiosan® is a disinfectant which has been specifically formulated to allow plumbers and non chemists to perform disinfection of water systems efficiently and safely.

It is based on hydrogen peroxide and has recently been granted NSF (worldwide) approval for use in drinking water. It will not cause skin sensitisation or irritation and will not cause eye irritation. It is not corrosive to any water system materials at use concentration. Tiosan® is a unique disinfectant because the water can be used safely while the disinfection is in progress.

Easy to use.

In a conventional domestic house situation where the water supply is from a cold water storage tank you simply add 1 litre to the 200 litre (50 gallon) tank and draw the water through to every part of the system by opening all the outlets. If the tank size is only 100 litres (25 gallons) you should be able to do two domestic systems.

Tiosan® is detected in water systems using simple easy to use test strips which change colour to dark blue when water containing the correct level of Tiosan® reaches the outlet.


A good water system disinfectant has to do three things . It needs to kill Legionella quickly – Independent test show that Tiosan® does. Legionella pneumophila, the only Legionella strain which causes the fatal Legionnaires’ Disease. The chemical also deals with Protozoa which can act as host organism for Legionella and most importantly it deals with the biofilm where Legionella and other organisms can hide.

Tiosan® does all of these things and this has been confirmed by independent laboratory testing.