RAH Consultancy has now been retained by Challis Water Supplies and their Swedish Manufacturer colleagues to prepare their products for UK Water Regulations Approval and Buildcert Approval.Acting as their technical expert in this field the works include the following:• A detailed study of each complete model• A detailed study of the drawings• A detailed study of the materials of construction• The provision of advice to the manufacturer of each model as to changes to the manufacturing process.• The provision of advice as to the selection of materials of construction that met the requirements of the Water Regulations• The completion of all the application forms for each model and liaison with the testhouse during testing.• In the event of failure of a device the provision of remedial actions so as to ensure future success.We are, in particular, working with them and giving advice on the materials testing of items such as Shower Hoses, this is ensuring that the duty of care of a Manufacturer to Legionella control issues are successfully met and appropriate to the risk.