4 Certain uses, connections, alterations, etc., of water fitting prohibited

5 Saving for fittings lawfully fitted before 3rd May 1996

6 Closed circuits

7 Identification of pipe and pipe fitting

GENERAL PROVISIONS

8 Unserviceable fittings and fittings not mentioned in these Regulations

9 Deterioration through electrolytic action

10 Connections which could cause contamination of mains water

11 Pumping from main

12 Protection of water fitting from damage

13 Accessibility to fittings

14 Disconnection of disused pipes

PIPES

15 Support of pipes

16 Depth of pipes laid underground

17 Protection of pipes from corrosion and contact with contaminating substances

18 Concealed piping

19 Pipes of lead not to be used

20 Pipes of cast iron, grey iron and ductile iron

21 Pipes of steel

22 Pipes of copper

23 Pipes of other materials

24 Fittings in closed circuits

TAPS AND VALVES

25 Stop-valves on pipes supplying buildings

26 Stop-valves on outlet pipes from storage cisterns

27 Valves at meter positions

28 Location of draining taps

29 Standpipes

30 Drinking-troughs

31 Draw-off taps

32 Stop-valves

33 Operation of stop-valves

34 Float-operated valves

STORAGE CISTERNS

35 Placing of storage cisterns

36 Support and covering of storage cisterns

37 Avoidance of flooding and buried or sunken cisterns

38 Materials for storage cisterns

39 Standards for storage cisterns

40 Storage cisterns to be fitted with float-operated valves

41 Warning pipes on storage cisterns holding not more than 4.5 cubic metres

42 Overflow pipes on storage cisterns holding more than 4.5 cubic metres

HOT WATER APPARATUS

43 Distance between hot water apparatus and draw-off taps

44 Position of outlets in relation to level of water in cylinders and tanks

45 Hot water cisterns not to have float-operated valves

46 Outlets from feed cisterns to hot water apparatus

47 Hot water apparatus not to be connected directly to service pipe

48 Mixing valves

49 Materials for hot water pipes

50 Materials for hot water cylinders and tanks

51 Standards for hot water cylinders and tanks

BATHS, WASH BASINS AND SINKS

52 Inlets and outlets of baths, etc.

53 Position of taps on baths, etc.

FLUSHING CISTERNS

54 Water closets and urinals to be fitted with flushing apparatus and control stop-valves

55 Float-operated valves and warning pipes on flushing cisterns

56 Pipes discharging to water-closet pans

57 Design and arrangement of flushing cisterns for water-closets

58 Design and arrangement of flushing cisterns for urinals