Apparatus for disinfecting water; Apparatus for purifying water; Apparatus for supplying water; Apparatus for the chlorination of waste water; Apparatus for the decontaminating water; Apparatus for the distribution of water; Apparatus for waste water purification; Apparatus for water purification; Apparatus for water supply; Apparatus for water supply purposes; Automatic watering installations; Electrical appliances for water supply; Electrical installations for water supply; Electronic apparatus for the purification of water; Industrial waste water purification plants; Installations for conditioning water; Installations for purifying water; Installations for the abatement of water pollution; Installations for the control of water pollution; Installations for the distribution of water; Installations for the purification of waste water; Installations for the recycling (purification) of waste water; Installations for the treatment (clarifying) of water; Installations for the treatment of industrial waste water; Installations for waste water engineering; Installations for water distribution; Installations for water purification; Installations for water purifying; Installations for water supply; Machines for processing (purifying) water; Machines for purifying water; Machines for the treatment (purification) of water; Machines for use in the processing (purification) of water; Pressure relief apparatus forming part of water supply systems; Pressure relief valves (safety apparatus) for water apparatus; Pressure relief valves (safety apparatus) for water pipes; Pressure tanks (water); Spray installations for the automatic watering of fields; Spray units being parts of water supply installations; Stainless steel water supply apparatus; Stop valves being safety apparatus for water apparatus; Stop valves being safety apparatus for water pipes; Stop valves for regulating water; Transportable apparatus for processing water; Waste water treatment apparatus; Waste water treatment installations; Water conditioning apparatus; Water conditioning installations; Water desalinating apparatus; Water desalinating apparatus utilising reverse osmosis; Water disinfection apparatus; Water distributing apparatus (automatic); Water distribution installations; Water purification installations; Water purification machines; Water purifying installations; Water purifying machines; Water supply apparatus; Water supply installations; Water treatment apparatus; Water treatment apparatus for water purification; Water treatment units