Domestic home internal water supply piping design

Following guide lines are well proven and used for several years before publication

Following guide lines are well proven and used for several years before publication.

• Use standard quality of materials for console piping.
• Straight pipe passing through wall may be acceptable, but avoid any type of joint in wall.
• Keep distance of minimum 1.5 meters from electrical console cable ducts or switch or lamp board.
• If any joint comes in wall, adopt standard procedure to make joint with one step higher schedule pipe and fittings.
• Use metal threads at all outlet valve joints or tapping.
• Do not use mild steel or other metal fittings which may attract corrosion and may be difficult to replace after few years.
• Up to maximum possible extent avoid console piping. Water piping outside wall gives easy leak detection, easy and low cost repairing. If possible provide special passage for all utilities purpose which can be repaired easily without any major civil work.
• Mild steel or poor quality of GI piping in console wall results in to corrosion which develops large cracks and becomes visible after wide crack on wall surfaces. Hence avoid metal piping in console design to safeguard home walls from crack after few years.
• Always use submersible IP 68 pump with easy to remove and replace design piping. Do not grout or anchor pump on its foot for small house hold type application. Pump removal should be easy by pulling rope and without entry inside water tank.
• Use cable passing though electrical conduit or PVC ducting. Do not allow pump’s power supply cable grouted in floor or wall..

Refer to given demonstration image, use only single pipe for all water supply and consumer outlets. This is having following benefits.

1. Reduces piping cost up to 30 to 40 %
   1. Keeps pipe clean for several years due to forward and backward water flow.
   1. Gives good appearance by reducing piping on building walls.
   1. Leakage sources reduced due to less piping joint as a result of reduced piping length.
   1. It gives sudden high flow in case of overhead tank is empty and pump started to fill it. In two pipe system, it takes more time to give desired flow.
   1. All outlet points may be flushed with high water flow to keep it deposition free.

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