The Health and Safety Guideline 282 (HSG282) came into effect in early 2017. The main aim for the introduction was to reduce the risk of Legionella outbreaks associated with spas and hot tubs in commercial settings. Section 5 of the guideline focusses on water testing and what needs to be tested: Disinfectant, pH and Total Dissolved Solids (TDS).
Levels should be in the following ranges:
Chlorine (free): 3 – 5mg/l
Bromine: 4 – 6mg/l
TDS: 1500mg/l (or 1000mg/l above the reading of the supply water)
For Chlorine, Bromine and pH, we recommend a photometer such as the Lovibond® MD 110 Photometer, supplied in a carrying case complete with tablet reagents for 100 tests of each parameter. TDS is carried out using a pen type meter such as the SD 80.
Tel. 01980 664800