In this video I will be showing you how I repaired a drainage pipe in my garden that had been shattered by the roots of a bush.
A couple of points to make – you want to make sure the internal diameters of the pipe you’re repairing and the new pipe you’re inserting match up.
In this video I cut the plastic pipe a little shorter than the gap between the two earthenware pipes – it should really have been the same, so that the flow through the pipe isn’t interrupted by any steps. In my case the pipe is only transferring rain water into a soak away in the garden so it wasn’t that critical, but if the pipe you’re repairing carries foul water / sewerage, it’s obviously critical there are no bumps or steps that could create blockages. If you’re not sure, get a professional in!
Also, strictly speaking you should use brown pipe underground. The grey pipe featured in the video is designed for use above ground ie it’s UV safe. No reason it can’t be used below ground but the brown pipe is cheaper!
Finally, in the video I bedded the pipe in with 20mm stone, as this was all I had at the time. I should really have used 10mm pea shingle, or even sand. I’ve been told heavier grade stones could break the plastic pipe…
TODAY’S TOOLKIT
Here’s what you’ll need:
– Flexseal AC4000 Drainage Coupling (ideal for clay to plastic)
121-137mm clay end / 110-122mm plastic end (Plumb Centre) NOTE: make sure you get the right size to fit the pipes you’re linking! http://goo.gl/jusOQw £20.42
– 110mm terracotta drain pipe (pvc) (Wickes) http://goo.gl/fnR4bc £8.58 for 3 metre length
– Bosch Grinder £34.99 http://goo.gl/59szPk (Screwfix)
– Universal (general purpose) saw http://goo.gl/KVQ2H3
– Sand paper to clean rough edges off pipe
– Safety Specs £2.99 http://goo.gl/GNaR4w (Screwfix)
– Rigger Gloves £1.29 http://goo.gl/YrVygq (Screwfix)
– 10mm pea shingle https://goo.gl/9TWDc9 £2.79 (available from all builders merchants/ DIY stores)
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you need to use underground pipe which is always brown not grey which is for above ground
Looks good, but I would have first laid the cut pipe on 10mm pea shingle and topped up to cover. Other than that, great job!
Great video. This is exactly what I need to do as well. Huge oak tree roots destroyed a section of sewer pipe. Thanks for being thorough! I can now move forward with confidence that I can handle this myself.
Don't wish to put a spanner in the works but installing a smaller diameter pipe would leave a 'step up' internally. A building control officer would ask you to replace the pipe with pipe of the same diameter
why didn't you cut center to but up to each end of orginal pipe?
thanks for this! plumber wanted to replace my whole sewer pipe instead of the one bad part
Thanks god, you are here ! I just counter this problem today, and now your video is here.
Thanks a lot and really appreciate it.
Generally pea shingle is used to bed drainage in.
wish I'd seen this earlier. (I wish you had had your disaster sooner? – not what I mean).