We live at the bottom of a hill and all our sewerage flows directly into a manhole shared with our neighbour. This then runs about 4 metres in to a second manhole which connects to the main sewer and also houses further up the road.
We have fairly frequent blockages which cause our toilet to back up. I was outside at half ten this evening furiously rodding the thing as it had blocked again.
Where the pipe from the first manhole flows in to the second, deeper, manhole there is some kind of restrictor on the outlet. It looks a bit like a hood that projects out of the chamber wall and halves the height of the pipe. It's always at this point that the blockage occurs and it looks like big chunks of scale catching paper and solids.
I've had Thames Water out a few times (usually takes a few days for them to turn up which is why I bought the rods). Should they be doing something to remove this restriction? I'm assuming it's there to slow the flow but it seems to be causing an issue.
Also it looks like the other end of the second chamber has an interceptor trap with a completely blocked u bend and everything is going through the rodding hole. Is this something I should worry about?
We have fairly frequent blockages which cause our toilet to back up. I was outside at half ten this evening furiously rodding the thing as it had blocked again.
Where the pipe from the first manhole flows in to the second, deeper, manhole there is some kind of restrictor on the outlet. It looks a bit like a hood that projects out of the chamber wall and halves the height of the pipe. It's always at this point that the blockage occurs and it looks like big chunks of scale catching paper and solids.
I've had Thames Water out a few times (usually takes a few days for them to turn up which is why I bought the rods). Should they be doing something to remove this restriction? I'm assuming it's there to slow the flow but it seems to be causing an issue.
Also it looks like the other end of the second chamber has an interceptor trap with a completely blocked u bend and everything is going through the rodding hole. Is this something I should worry about?