Neighbours Sink/dishwasher/Washer Waste pipe into our garden.

marcia_

 I wouldn't let them because if they pour oil or food scraps down the drain it could block and I doubt they will pay for it to be cleared 

LightFlare

marcia_ said:

 I wouldn't let them because if they pour oil or food scraps down the drain it could block and I doubt they will pay for it to be cleared 

agree - If they are removing the conservatory completely, i would almost go as far as "asking" them to reroute the rainwater piping at the same time so it isnt encroaching on your land/using your drains

ProDave

If they are going to the expense of such major alterations then they can pay for laying a proper drain, known to be a foul drain for the purpose.  There must be one already for their kitchen, so they just need to route that to a new location to suit the new layout.

A definite NO from me to any more pipes coming over your wall, and the conservatory one will be gone then the conservatory goes.

Section62

FreeBear said:

Beanbag1 said: I live in a semi detached house, and at the back there is a drain that is on my side of the property which is attached to the guttering to drain water for both houses.

Do you know if this drain is connected to the main sewer or does it discharge in to a soakaway ?

If the latter, you can not put grey water from a kitchen in to a soakaway.

And if the area has separate foul and surface water drainage then it would be an offence to discharge foul/grey water into a surface water drain.

Beanbag1

Thanks guys.. 

I believe the drain pipe is a shared s24 foul sewer. So it can be used for grey waste as I believe someone has called it. 

ATM this pipe is just used for surface water buts meets up in a manhole on my property where  my soiled pipe and other waste products.meet. 

I agree that if they can use it for grey waste, they will need to connect it underground. 

Beanbag1

I will also check my deeds and see what that says 

Beanbag1

This what I got from the water company. 

Bu it doesn't look ongo where our manhole is.

ProDave

From that drawing there is a change of direction right on the boundary.  There should be an access chamber at a change of direction, but old drains don't always have that.  So the neighbour needs to install an access chamber at that change of direction and connect underground to that.  I would allow him to do this, even if it means some work on your land.

propertyrental

Check your deeds and any other written agreement that exists.

Depending what exactly they are building and where, they/you may need a party wall agreement  (they would pay the cost of your surveyor). If so, your surveyor will advise and approve or reject their plans.

https://www.gov.uk/party-walls-building-works

Section62

ProDave said:

From that drawing there is a change of direction right on the boundary.  There should be an access chamber at a change of direction, but old drains don't always have that.  So the neighbour needs to install an access chamber at that change of direction and connect underground to that.  I would allow him to do this, even if it means some work on your land.

I'd expect the pipe going across the OP's garden to carry on more or less straight across the neighbour's as well, with the pipe from the chamber/drain against the house being a branch.  The apparent change of direction may well just be a saddle or branch connection.  If that pipe is a S24 sewer then the neighbour should be doing any work on it without the water company's consent - they may insist on doing the work themselves.

If the pipe from the direction change point to the chamber/drain against the OP's wall is only meant to serve their property then this pipe wouldn't be a S24 drain.  That the neighbour (possibly unlawfully) connected their conservatory roof drainage to the gully(?) wouldn't necessarily change the pipe into a S24 sewer.

On the basis of what the OP has said, I don't think the neighbour has a right to discharge grey/foul water into the drain/gully on the surface, but may have a right to discharge underground.  Personally I'd resist an above ground discharge as this may lead to damp issues on the adjacent wall.