Underground Drainage

Underground Drainage




Underground Drainage















The common defects to underground drainage


  • Tree Root Ingress In Drainage Systems is one of the most common causes of blockages to domestic systems, disturbed ground such as back filled drainage trenches make easy travelling for roots.
  • Blockage in pipe this will stop water flowing making it billed up and making it hard to get over stuff throw
  • Damage to underground pipes will cause leaks or pipe moving out of place form the mane line to sewage.

Materials
· Bottle gullies £40 (1)
· Underground drain pipe £40 (3)
· Socket £10 (3)
· Long radius £20 (1)
· Bend £10 (1)

The defects and limitations of underground drainage

· Bricks and mortar insurance policy.
· Damage that results from Erath movement.
· Drain defect that can be classed as accidental damage should be covered.

Tools
· Pencil
· File
· Panel saw
· Hack saw
· Tape


Risk assessment

· Working in a confined area
· Cutting yourself on fresh cut pipe
· Edges can collapse on you (cave in)

Support the edges where you are working to stop any chance of a collapse,
Use a file instead of your finger to prevent cutting any body parts open and try not to have to many people working in a confined area to avoid any accidents. We will be working to the working at the (HSE) standard and they health and safety act of 1974.


Method statement
We shall put on our correct PPE on before we start the installation of your underground drainage. Then we will get rid of soil and debris in the area that we need to work in. To put your drainage system in we started installing a bottle gullie then we attached the long radius bend and cut drain pipe to size to be able to install it properly in to they bottle gullie. lead to the mane sewage pipes after we hide all the pipes by poring cement in.

Quote
Dear customer
We have inspected they area you wanted your underground drainage.
Next we dug up all soil, debris and put in skip.
We install the bottle guille and all pipes and any bends, long radius and drain pipe
Then we refilled they area up with cement
We finished the last touches that need to be done. (plus clearance)

Times
2 day 8 hurs


Cost
They coast of all they materials, skip and job will cost £1600 plus VAT.


  • Skip £200
  • Materials £120
  • lader £360 per person for a 2 days work
  • overhead (petrol, PPE, permit) £200
Total cost £1600

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