The Different Components of a Rainwater System

A rainwater system is essential for draining away rainfall from your property, allowing your home to withstand heavy weather conditions, even in the most difficult of climates.  There are several different components to these systems, each part fulfilling a separate function.

Being aware of the different parts of a rainwater system – from a plastic down pipe to a gutter outlet – will allow you to make appropriate replacements as and when you need to, as although PVC and other types of rainwater are resistant, they still can suffer from damage and deterioration.

The first part of the rainwater system is the guttering.  This is the part of the rainwater that is placed around your roof to capture rainfall and move it away from your property.  There are several different volumes of guttering available, so be sure to choose one that is suitable for the level of rainfall typical of your region.

Generally, guttering is at least 100mm in width, which is suitable for a reasonably heavy downpour of rain.  As well as people who live in areas that have a great deal of rainfall, those large roofs will also consider investing in larger sized rainwater to be able to withstand greater volumes of water.

The next part of the rainwater system is the plastic down pipe, which is where the guttering will channel the water to.  The plastic down pipe goes down the side of a property, moving the water from the roof into gullies at the ground of a property.

The plastic down pipe or any other material of down pipe also comes in a range of different sizes, making them suitable for differing volumes of rainfall.  Guttering that has a width of 100mm, as mentioned above, is generally paired with a plastic down pipe of around 75mm in width.

If you are unsure about the size of down pipe to go with your guttering, it is best to check with a plastic building supplies specialist, who will be able to give you accurate advice on the right choice to meet your needs and work efficiently as a system.

Both of these components of your rainwater can become blocked easily, especially at times of the year such as autumn, where leaves and other natural debris and clog up the system.  It is advisable therefore, to check both of these parts regularly in order to avoid major damage being inflicted on the individual parts as well as the entire rainwater system.

Water will be drained from a gutter into a plastic down pipe by a gutter outlet.  This component is usually straight in shape or can have a double bend called a swan neck for some properties that have overhanging eaves.

After traveling through the down pipe, water will be drained into a gully, which is the ground-level component of your rainwater system.  Rainwater will then be transported away through an underground drainage system, effectively clearing away the rainfall from your property.

In a similar fashion to both guttering and downpipes, gullies can become easily clogged up with natural debris such as leaves and grass cuttings.  Make sure that gullies are regularly inspected and kept clear at all times to keep your rainwater in full working order.

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