Heh. Yesterday, we had a plumber over who told us we have to rebore our sewage pipes because roots got in. It is an old house with cast iron pipes and they still got in.

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bombcar 5 days ago | parent | next [-]

Cast Iron’s worse than plastic because they always leak a tiny bit and that means that the roots can “smell” the water and go for it.

Plastic either is impervious or completely fucked.

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2OEH8eoCRo0 5 days ago | parent [-]

I get tree root intrusion where my newish plastic sewer main joins the street sewer.

	▲	bombcar 4 days ago \| parent [-]
		Yeah joints are always the problem. Which is why you want the joints to be someone else’s problem.

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HarHarVeryFunny 5 days ago | parent | prev [-]

I've never heard it called "reboring" - wonder if there is a different procedure for when it gets really bad, but I'd have thought problems (backup) would happen pretty quickly, so wouldn't be too bad as long as you take care of it.

They basically use something like a weed whacker fed down the pipe, except it uses a short bit of chain instead of trimmer line, and will pulverise any intruding roots.

	▲	peterbecich 4 days ago \| parent [-]
		There are at least two techniques: sewer rooting (low velocity and high torque) and sewer de-scaling (opposite).