Blocked sewer pipe at 90 degrees bend

paul123

Hi
I am fed up every month having to rod a toilet sewer pipe from an inspection chamber in the garden.. There is a 6m pipe from the chamber going to what looks like a left hand bend then another run of 10m to another chamber. Because of the length of the run it is always getting blocked at the bend. The chambers are 300mm wide and 600mm deep. Can anyone suggest a permanent solution ?
Thanks.

FreeBear

Dig a hole and put in another inspection chamber where the bend is.

paul123

Yes I thought about that but the bend is under a fence panel. cant move fence

FreeBear

You don't have to put a new chamber exactly on the spot where the bend is. Fit a 15° or 30° bend downstream and you could site the chamber within the fence line.

Boohoo

paul123 wrote: »

Hi
I am fed up every month having to rod a toilet sewer pipe from an inspection chamber in the garden.. There is a 6m pipe from the chamber going to what looks like a left hand bend then another run of 10m to another chamber. Because of the length of the run it is always getting blocked at the bend. The chambers are 300mm wide and 600mm deep. Can anyone suggest a permanent solution ?
Thanks.

Before doing any thing if as you say it happens every month the there must be something very bad with the sewer.


I maybe worth spending money on getting a camera survey done to see if there are any tree roots, sunken runs or other issues with the drain and if that comes back all clear then you can get on with putting in a new inspection chamber.


You did mention a fence panel being in the way, are you sure the fence posts have not damaged the underground sewer pipe?

paul123

Thanks for the replies. There is nothing wrong with the fence or tree roots. The toilet linked to the pipe has omly recently been frequently used. Was thinking about buying a cheap camera off ebay that links to your phone. I read somewhere that a 90 degree bend should never be used on sewer pipes for this reason.

Apodemus

It could be that this is a user issue. Sewer pipes can be more susceptible to blocking if the ratio of paper to water is too high, if certain types of paper are used or perhaps if items other than paper are flushed... (trying not to be too indelicate here, but, *ahem*, you did say this was a monthly occurrence?)

markin

Even Flushable face wipes and wet wipes are a problem and should go in the bin, The simplest fix may be to simply double flush every time, Water saving toilets don't save water if you have to flush twice.

Apodemus

markin wrote: »

Even Flushable face wipes and wet wipes are a problem and should go in the bin, The simplest fix may be to simply double flush every time, Water saving toilets don't save water if you have to flush twice.

Yes, we installed a water-saving automatic flushing system for the urinals in an office building, which resulted in paper blockages in the waste pipes...the additional water from the male toilets had been compensating for the paper to flush ratio in the ladies toilets. Once reversed, the problem didn’t recur.

getmore4less

Inspection chamber just out side the house had filled up

~2m from the downstairs toilet, (in from side, out from front)

The outlet from the chamber had got blocked by paper.

This was from a single low flush toilet that had increased use.
A lot of modern paper is quilted and tends to float.

The other waste producers from the house join down stream of this one.

Doozergirl

Boohoo wrote: »

Before doing any thing if as you say it happens every month the there must be something very bad with the sewer.


I maybe worth spending money on getting a camera survey done to see if there are any tree roots, sunken runs or other issues with the drain and if that comes back all clear then you can get on with putting in a new inspection chamber.


You did mention a fence panel being in the way, are you sure the fence posts have not damaged the underground sewer pipe?

The problem is the fact that there is a 90 degree bed with no inspection chamber at that point. It would never meet regulations and it is going to block regularly. It only needs one massive poo to not make the bend :rotfl: