Water Supply Industry Interpretations and Advice
Index
| Area of Interest | Reference | Topic | Title |
|
Backflow prevention |
B01 |
Risk assessment |
Laboratories – risk of contamination by backflow |
|
Backflow prevention |
B02 |
RPZ Valves |
RPZ valves - record keeping |
|
Backflow prevention |
B03 |
Emergency supplies |
Renal Dialysis units – emergency water supplies to hospitals |
|
Backflow prevention |
B04 |
Fluid category |
Steam ovens – catering equipment |
|
Backflow prevention |
B05 |
Fluid category |
Dry cleaning machines |
|
Backflow prevention |
B06 |
Fluid category |
Backflow risk in dog and cat kennels |
|
Backflow prevention |
B07 |
Fluid category |
Pressure washers |
|
Backflow prevention |
B08 |
Fluid category |
Use of 'Fluid Category 5' |
|
Backflow prevention |
B09 |
Filling loops |
Rapid filling of heating and cooling systems in non-domestic premises |
|
Backflow prevention |
B10 |
Fluid category |
Washbasins in hairdressing saloons. |
|
Backflow prevention |
B11 |
Temporary supplies |
Dosing equipment - temporary connection under the provision of Regulation 2(2). |
|
Backflow prevention |
B12 |
Fluid category |
Flushing water systems prior to commissioning |
|
Backflow prevention |
B13 |
Fluid category |
Swimming pools in domestic and non-domestic premises and hose union taps |
|
Backflow prevention |
B14 |
Fluid category |
Baths – residential care accommodation |
|
Backflow prevention |
B15 |
Fluid category |
Fence-cleaning chemical spray equipment directly connected to mains |
|
Backflow prevention |
B16 |
Maintaining supplies |
Cross connections - permissible arrangements |
|
Backflow prevention |
B17 |
Fluid category |
Dishwashing machines in small nursing homes |
|
Backflow prevention |
B18 |
Fire sprinklers |
Fire sprinkler systems – backflow protection of domestic water supplies |
|
Backflow prevention |
B19 |
Maintaining an air gap |
Pre-rinse spray units for catering use |
|
Backflow prevention |
B20 |
Flexible hoses |
Retaining rings for backflow protection of flexible shower hoses |
|
Backflow prevention |
B21 |
Flexible hoses |
Flexible hoses used in catering premises for vegetable preparation |
|
Backflow prevention |
B22 |
Water heaters |
Filling and topping up heating system primary circuits. |
|
Backflow prevention |
B23 |
Backflow protection |
Temporary water supplies to agricultural shows and festivals etc. |
|
Backflow prevention |
B24 |
Glass washers |
Glass washing machines |
|
Backflow prevention |
B25 |
Fluid category |
Cement batching plant |
|
Backflow prevention |
B26 |
Secondary backflow protection |
Secondary backflow protection for Caravan and residential park homes |
|
Disputes |
D01 |
Resolving disputes |
Advice on disputes and arbitration |
|
Installation |
I01 |
Stopcocks |
Need for boundary stopcocks |
|
Installation |
I02 |
Preventing cross connection |
Inappropriate use of blue coloured pipe |
|
Installation |
I03 |
Pressure testing |
Plastics pipes - test requirements. |
|
Installation |
I04 |
Stop valves |
Stop valves – for two or more premises with common supply or distributing pipes |
|
Installation |
I05 |
Pipes |
Location of pipes under solid floors |
|
Installation |
I06 |
Contamination |
Ban on lead-based solder – declaration from developer/installer |
|
Installation |
I07 |
Water heaters - expansion water |
Isolation valves in expansion vessel pipework. |
|
Installation |
I08 |
Pipes |
Colour coding of supply pipes |
|
Installation |
I09 |
Water heaters - expansion water |
Mains fed water storage heaters of 15 litres or less. |
|
Installation |
I10 |
Fittings |
Continued use of fittings lawfully installed under the former Water Supply Byelaws. |
|
Installation |
I11 |
Accessibility of pipework |
Accessibility of supply pipes passing through premises in multi-occupancy. |
|
Installation |
I12 |
Stop valves |
Provision and location of common or separate supply stop valves in buildings |
|
Installation |
I13 |
Servicing valves |
Hose union taps considered as service valves |
|
Installation |
I14 |
Discharge pipes |
Discharges from condensing boilers |
|
Installation / Water Quality |
IWQ01 |
Disinfection of pipework |
Time elapsed before re-disinfection |
|
Non-compliance |
NC01 |
Crown immunity |
Application of the regulations to premises previously covered by Crown immunity |
|
Non-compliance |
NC02 |
Timescale for improvements |
Proportionality and timescales in requiring compliance |
|
Notification |
N01 |
Fire sprinklers |
Fire sprinkler systems - adequate water supply |
|
Notification |
N02 |
Details of notifiable work |
Notification of alterations – exemption for minor work |
|
Notification |
N03 |
Approved Contractors |
Approved Contractors exemption from Notification and Compliance Certificates. |
|
Relaxations |
R01 |
Consistency |
Seeking national Water Supply Industry support |
|
Requirements for Water Fittings |
RWF1 |
Interruption to water supply |
Electric water heaters - continuity of supply |
|
Use of water |
UW01 |
Fire sprinklers |
Provision of water for fire sprinkler systems in domestic premises |
|
Water Quality |
WQ01 |
Preventing contamination |
Standpipes |
|
Water Quality |
WQ02 |
Preventing contamination |
Taste of TCP from flexible hoses |
|
Water Quality |
WQ03 |
Maintaining wholesomeness |
Chemical dosing equipment for maintaining water quality |
|
Water Quality |
WQ04 |
Pressure testing and disinfection |
Changing premises from private water supplies to public supplies |
|
Water Quality |
WQ05 |
Liability |
Dosing equipment - responsibility |
|
Water Quality |
WQ06 |
Contamination |
Preventing stagnation in a fire sprinkler system |
|
WCs |
WC01 |
Warning pipes |
Internal warning pipes (overflows) |
|
WCs |
WC02 |
Warning pipe |
WC cisterns - inappropriate use |
|
WCs |
WC03 |
Flushing performance |
WC pans - on site test of flushing effectiveness |