Freephone: 0800 0 319 200

Telephone: 0161 941 5571

Email: sales@ctm.co.uk

Victor & Percy

Installing a New Water Main

Return to Plumbing page - click here

The photographs on this page show were taken before, during and after a water main was replaced. They provide a step by step guide to how the job should be done. This property was part of a terraced block that had a common lead supply laid under the outhouses at the rear. This house was one of two remaining on the old supply when the lead pipe began to rupture causing damage to a wall and floor.

In this instance due to the length of the garden and concrete covering sections of the route, it was decided that the best method of installation was to use a hydraulic mole. The mole minimised the disruption to the property, as shown in the photographs at the bottom of the page, taken after the job was completed.

The property before work began

Existing supply leaking Intended position of new supply

Existing supply leaking

Intended position of new supply

Site prior to work Site prior to work

Site prior to work

Site prior to work

When undertaking any work connected to the water supply the householder is responsible for ensuring that the work done complies with Water Supply (Water Fittings) Regulations 1999. The regulations require that any risk of wasting water or contaminating water is minimised.

Digging the trenches

First trench Excavations on trench two

First trench

Excavations on trench two

Second trench with pipe Preparing to mole trench three

Second trench with pipe

Preparing to mole trench three

Qualified, experienced plumbers can become accredited as Approved Plumbers. Only Approved Plumbers are able to provide a certificate stating that the work done complies with the necessary regulations. You should ask your plumber about this before the work starts. Country & Town are Water Industry Approved Plumbers and as such are listed on the United Utilities website as contractors able to carry out the removal of lead water mains and the replacement of water mains.

Using the hydrolic mole

Preparing to mole trench three Mole moving to next trench

Preparing to mole trench three

Mole moving to next trench

Mole arriving in trench five View of mole compressed air supply pipes

Mole arriving in trench five

View of mole compressed air supply pipes

If you decide not to use an approved plumber to replace your water main you will have to arrange for the work to be inspected. All works must fully comply with the requirements of the Water Supply (Water Fittings) Regulations 1999.

The new main supply at the house

View of trench to house View of trench to house and out building

View of trench to house

View of trench to house and out building

New house main supply New outbuilding main supply

New house main supply

New outbuilding main supply

Points to be aware of when considering a replacement water main

United Utilities preferred material in normal conditions is blue MDPE 25mm pipe

If MDPE is used above ground it can be damaged by light and must be protected

Where a water pipe enters a building it must be contained inside a suitable duct

The duct must have a suitable seal at each end that could be removed if necessary

Trenches should be lined with sand or soft earth, not sharp rubble.

Water pipes should be laid more than 750mm and less than 1350mm below ground

Water pipes should be kept at least 350mm away from other services

Pipes must not be jointed inside a duct, but can be jointed in a trench

Ducts may need to be lined with waterproof insulation depending on situation

A stop tap and drain off valve must be fitted, as soon as the pipe enters a building

The property after the new water main has been laid

House trench filled and slab replaced Outbuilding trench filled and concreted

House trench filled and slab replaced

Outbuilding trench filled and concreted

View of finished works to path View of finished works to road

View of finished works to path

View of finished works to road

 

Contact

Contact us today by clicking on the above link.