Putting in drains pipes, do this first off
Putting in drains pipes, do this first off
The most significant thing that you have to care about while taking on any DIY plumbing and drainage work are the Local Authority regulations which they actively monitor.
Detailed plans of any changing or installing of drainage in your home will have to be submitted, and expect ongoing inspections until its completion to ensure that the work abides by the rules. In many situations when you are simply replacing broken parts, there is no need for the local authority to be informed.
If you hear the term ’surface water’ in any drainage documents this basically means rain. In older properties this can discharged into a foul water drainage system whereas in other properties this can discharged into a soakaway, watercourse or a surface water sewer. To stop any nasty odours emanating from the drains a combined system will discharge the surface water into the foul water drains by way of the gully traps. With more contemporary systems, however the foul water and surface water is kept separate, this is a more recent development. It is extremely important to ensure that you do not connect foul water to a surface water drainage system. When in doubt about the how the modern drainage system works, consult the Building Control Department.
To properly prepare the plans and get local authority permission to commence work there is a need for you to plan the route of the waste pipes before you begin. Sewage pipes must be aligned as straight as possible, with inspection chambers at short intervals. The pipes should run straight with a gentle incline. Using surveyor’s site level you can calculate the fall of a drain over a distance to check the values. In the absence of one of these, create a datum point and set levels with a hosepipe filled with water and compute the fall from the datum in this manner.
Don’t compromise the stability of the building when setting up the drainage ditch. If placing a drain pipe alongside the home, you need to make sure any foundations are not weakened.
If you try to dig all the trenches before you start pipe fixing, there is a chance of some trenches collapsing. Make sure that you get the pipes laid as quickly as possible and then backfill the ditch as soon as the system has been inspected and tested.
The ditch may need to be supported depending on the depth and soil conditions. You should avoid any risks with this project. If you are not entirely confident of the stability of the ditch you should add support. The excavation should be only as wide as required, but should also permit the fitter to work conveniently. The bottom of the trench must be smooth and clean, free of any objects that make it uneven such as stones or bricks. If the exiting material is not suitable then you may need to import a suitable material for the base of the trench.
For pipe support do not use bricks or other hard materials in the trench. This will damage the pipe and must never be used as temporary or permanent support. For accommodation of the joints in the pipes,the bedding should be compacted in a regular way with hollows made a appropriate points. A good guideline is that support should be provided for the entire length of the pipe.
It is very important that the design of the sewage system should be constructed in such a way that all parts of the pipework are accessible to a set of drain rods for future maintenance. Therefore, a run of drains should be as straight as possible between two points. In case of any change in the direction of the pipework it should be provided with an inspection chamber for allowing drains rod access.
Following this guide you can see that DIY plumbing and sewage can be delivered by conscientious DIY enthusiasts.