Before you start drains pipes fitting do this







Before you start drains pipes fitting do this

Before starting any plumbing and sewage work yourself you should find out about any Local Authority regulations that relate to your area.

You will have to present detailed plans for the proposed drainage work when you are changing existing drainage system or installing a new sewage system, and also need regular inspections to be undertaken to ensure that the plans are following the local building regulations during progressing each phase of the work. If you are simply replacing damaged sections of the sewage, in most circumstances they do not need to be informed.

Surface water is basically rain. An earlier method was to directly discharge this surface water into the sewage drains, but modern homes use a surface water sewer or watercourse or soakaway to drain or absorb rainwater. Air escape from the drains is stopped when rainwater pipes are discharged into the foul water drains through gully traps in an older combined system. Nowadays hygiene and recycling considerations have led to a mandatory separation of surface water and sewage water. Foul water should never be connected to surface water sewage system with any new sewage development you undertake. You should get advice from the local authority Building Department before you start any work in a situation when you are not sure about the drainage system around your house.

Designing the path of the waste passageways will be your first task. Keeping the path as straight and short as possible will be the main concept behind the design of the waste passageways or pipes. Also, make sure none of the pipes are laid at too steep an angle. Using surveyor’s site level you can calculate the fall of a drain over a distance to check the values. If you do not have one of these available, establish a datum point and use a hose filled with water to establish levels and calculate the fall from the datum this way.

Don’t compromise the stability of the house when setting up the drainage ditch. Keep the drain pipe excavation at a uniformly safe distance from the house face to avoid damage to the foundation.

If you try to dig all the trenches before you start pipe fixing, there is a chance of some trenches collapsing. Get the pipes laid quickly and, as soon as they have been tested, fill the ditch back in.

Depending on the depth and soil conditions, the trench may require support. You should avoid any risks with this project. If in doubt add support to the ditch to prevent it from collapsing. You must make the ditch as narrow as possible while leaving enough room to work inside it. Be sure to remove any stones or bricks from the trench bed and make it as even as possible. The base should be good so you may need to import material if the existing soil structuire is not up to the mark.

Bricks and/or any other sturdy material should never be used to prop up the pipe in the ditch. Even if used for just a temporary support this can damage the pipe. For accommodation of the joints in the pipes,the bedding should be compacted in a regular way with hollows made a appropriate points. You will need to provide a continuous and uniform support for the complete length of the pipe.

The sewage system should be designed in a way that pipework remains accessible to drain rods should sewage maintenance work be required. This need for drain rod access can be easily achieved by keeping the pipeline straight and in short sections. In case of any change in the direction of the pipework it should be provided with an inspection chamber for allowing drains rod access.

If you are keen on DIY and follow some basic rules then you will be able to do plumbing and drainage on your own.

Posted in Drains


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