Hello experts.....
I posted a little while ago about a shared drain that runs along the back garden of the 8 houses in our road.
The situation continues and I now have another question.
The shared pipe is a 6" diameter concrete pipe. The houses were built in the early 60s.
My husband has replaced broken pipe in our garden (actually it was a section that had been removed by the builder of an extension on the house), and also replaced a section of our neighbours which had been broken where a downpipe had been punched into it allowing root ingress.
Today, another neighbour and my husband dug across another back garden to extablish presence of pipe and also any sections that needed replacing.
Where before all the conctrete pipe we had seen was still strong and good condition (needing a grinder to cut to size), the drain sections at this house were disintegrated (especially the top half of the pipe). Any bit of pipe still in tact crumbled if hit with a spade. The sections LOOK identical to what we have seen previously. A large root was found running along part of the pipe and there is a willow tree in the garden.
This is so different to the pipes we had seen in other gardens, does anyone know of a reason why it should have crumbled like this?
They also exposed a 4" plastic pipe diverting from the catchpit down to the bottom of the garden, so a previous owner obviously did this when they realised the existing pipe was not doing its job.
Any ideas gratefully received.
Sally
Disintegrating concrete pipe
-
flowjoe
- Posts: 1136
- Joined: Sun May 08, 2005 9:25 am
- Location: North West
Hi Sally
Fairly unusual (around these parts anyway) to find 150mm (6") concrete pipes, since the victorians pipes from 4" to 15" would normally be vitrified clay (earthenware)
The poor condition could just be down to a bad batch though i suspect they may of been lay around in someones yard and open to the elements for a few years before they were used.
I would get a camera survey carried out before i did too much digging, there are plenty of no-dig repairs that could save your husbands back
Fairly unusual (around these parts anyway) to find 150mm (6") concrete pipes, since the victorians pipes from 4" to 15" would normally be vitrified clay (earthenware)
The poor condition could just be down to a bad batch though i suspect they may of been lay around in someones yard and open to the elements for a few years before they were used.
I would get a camera survey carried out before i did too much digging, there are plenty of no-dig repairs that could save your husbands back