What size should my water main be?

In most cases, the main pipeline from the street to your home is either 3/4 or 1 inch in diameter, supply branches use 3/4-inch-diameter pipe, and pipes for individual components are 1/2 inch. Remember that water pressure decreases by a half-pound per square inch for every foot pipes extend above your water supply.

How deep is the water main to the house?

The general depth of underground water pipes is 12 inches below the frost line in your specific geographical area.

What size water line do you run from meter to house?

In the case of a three family house an 1 1/2″ service line is typically required. Again the exception would be if the length of the run of pipe was only 35′ or less. In most cases a six family house or greater will require a 2″ water service line.

What is the minimum size main water service pipe?

The water service pipe shall be sized to supply water to the structure in the quantities and at the pressures required in this code. The minimum diameter of water service pipe shall be 1 inch (25mm).

Is 3/4 water line big enough?

3/4 supply is good for most houses. If you have low pressure with taps on 3/4 may be small. If you have big house with many lavatories and people 3/4 may be small.

How deep does a new water main have to be?

According to ‘The Department of the Environment’, they recommend that pipes should be buried at least 600mm (two feet) underground. At this depth, the soil acts as a natural insulator and prevents them freezing.

How deep should a water main be buried?

How many fixtures can you put on a 3/4 water line?

14
For our example, our 1-inch pipe can have up to 30 fixture units, our 3/4-inch can have up to 14, and our 1/2-inch can have up to 4.

How deep should a water main be UK?

All underground pipework except for pipes laid under a building should be laid at a depth of no less than 750mm from the finished ground level and no more than 1,350mm.