Plumbing|March 26, 2012 12:35 pm

What causes low mains water pressure?

One of the most frustrating things for property owners and tenants is low mains water pressure. It makes showers not very pleasurable and is frustrating when trying to fill a bath. Even though most modern boilers can cope with very low pressure, it’s still not ideal.

But what actually causes low mains water pressure? It can be any of the following…

Burst pipes

Burst mains pipes are a likely culprit if the pressure has suddenly dropped in your home. If this happens then we advise that you call your local water supplier.

Corroded pipes

As a lot of pipe work in London properties is old, even to the point where it’s victorian, corrosion often occurs causing the pressure to drop. Apart from the obvious sign of water leaks – other signs include the water being turned into a brownish, highly acidic and undrinkable solution.

Pipe diameter

The diameter of the pipe will of course have an effect on the water pressure. If the pipe has a small diameter then less water will be able to pass through, causing a reduced pressure in your home.

Demand

If there is a water shortage then people using hoses and sprinklers can actually cause a slight reduction in water pressure. Also within your household if the demand is high then you’ll experience reduced pressure.

The first step you should take when experiencing a prolonged level of reduced water pressure is to search your property for any signs of leaks. If you can’t find anything – call your local water supplier and enquire as to whether there is any scheduled maintenance being carried out in your area that could result in a lack of water pressure.

If doing either of those things doesn’t rectify the problem, then it’s time to consult your plumber. Give them a call and ask them to inspect your property for low water pressure. It could well be a leak in a position where you wouldn’t ever notice.

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