Best / easiest washing machine waste to sewer connection

[If in doubt...]

Hi,

Am moving washing machine to where the only waste drain option is to go out through wall and tap a fresh connection in to the main sewer running just the other side.

Nothing else will ever be needed there so once I'v put the std standpipe / water trap on the inside what is the best option to tap in to the sewer? - it will be coming out just to the right of the drain pipe in the picture - that drain pipe must go in to a soakaway as does that black grill as they don't drain that quick and nothing appears in the sewer.

Will I need a full gulley cut in to the concrete, if so are there preferred typess? and I'm assuming I need to put a complete new connection in to the right of the inspection cover.... or is there a better way? I'm aware I'll have to prob notify BC on this.

Thanks in advance.

 

[Hugh Jaleak]

I'd be inclined to repurpose the existing gully, find the outlet pipe from that and reroute into the sewer. Be a bit easier than breaking into the manhole.

As it's only a Gully, I wouldn't worry too much about notifying BC, unless you're planning on selling the Gaff in the next few years.

 

[Stuckinarut]

You need to ascertain if those are foul drainage only/combined or surface only, if the former, as above, but if the latter then do not connect your washing machine waste to this.

 

[DP]

I think north of the border it does.

Left CI is rainwater, right,o soil pipe

 

[Stuckinarut]

I think north of the border it does.

Left CI is rainwater, right,o soil pipe

View attachment 375712

Combined system Dan, which is perfectly acceptable. If separate, then in England it's not permitted.

 

[If in doubt...]

I'd be inclined to repurpose the existing gully, find the outlet pipe from that and reroute into the sewer. Be a bit easier than breaking into the manhole.

As it's only a Gully, I wouldn't worry too much about notifying BC, unless you're planning on selling the Gaff in the next few years.

Thanks - that black grid gulley and the rainwater downpipe are all under approx 10sq metres concrete so will be near impossible to find where they go. Based on my suspicions when we did work elsewhere on the house they just drain direct in to the soil and original builders didn't bother with full on soakaways. We are on gravel beds here so the land drains really quickly, but after a heavy rainfall I do get pooling around that grid for. short while. All houses here are the same, built in the 70's but no issues apart from temporary slight pooling which soon dissapears.

 

[If in doubt...]

You need to ascertain if those are foul drainage only/combined or surface only, if the former, as above, but if the latter then do not connect your washing machine waste to this.

We are combined here - houses built in the 70's. The existing loos, bathrooms, kitchen appliances and some rainwater downpipes all drain in to the sewer shown, flowing in from the left hand side of the photo - I'm now moving the washing machine to the right hand side of the photo but to the other-side of an outside door just further to the right of the photo - hence I can't run any internal waste pipes.

I guess to re-word my main question better - can I tap something that runs directly in to that existing inspection chamber (and if so how) or do I need to cut a new fresh run somewhere in to the right of it and intersect the main sewer pipe further on down?

Cheers.

 

[Hugh Jaleak]

Thanks - that black grid gulley and the rainwater downpipe are all under approx 10sq metres concrete so will be near impossible to find where they go.

I wouldn't worry about where the Gully goes, I'd just dig around it, find the outlet, disconnect from wherever it does go, and reroute it across to the sewer before it enters the Manhole, and couple into the existing pipework there with a junction. Be easier I'd think than trying to break into the chamber. Bring your washing machine waste out above it.

 

[If in doubt...]

Thanks for the replies folks - Now Ive looked closer there look to be some kind of liner going on.

I'm thinking that will hamper installing a normal sleeved type junction? Would I be better off putting in a complete new concrete base / brick manhole affair, or is there a particular way of doing it? I don't mind as if I'm going to be cutting and digging I may as well do the best job.

Cheers

 

[Hugh Jaleak]

That liner/patch doesn't look to be very well installed, it should be tight to the wall of the pipe, all the way around. It's possibly going to make things more interesting as you aren't going to know what condition its in where you plan to break into the sewer.

I think that's the downstream section? I still think you'd be better off going in upstream of the manhole. Replace (or reuse) existing gully , and route pipe into a junction as shown. Bring waste through wall above gully.

 

[If in doubt...]

That liner/patch doesn't look to be very well installed, it should be tight to the wall of the pipe, all the way around. It's possibly going to make things more interesting as you aren't going to know what condition its in where you plan to break into the sewer.

I think that's the downstream section? I still think you'd be better off going in upstream of the manhole. Replace (or reuse) existing gully , and route pipe into a junction as shown. Bring waste through wall above gully.
View attachment 377213

Thank you, yes the lined part is the downstream section - and I totally agree rerouting that gulley near the corner would make sense as it will intersect on the newer unlined upstream section.
Next door is exactly the same, had a recent survey when they moved in and were told their same sewer section was also lined, partly oval etc....but "should" be ok.....

I'm not too worried as the run is fairly straightforward to dig up if it ever needs redoing and it will give me an excuse to get rid of a no longer needed disabled ramp..... that nicely breaches our DPC but Id rather not sort all that unless I really need to.

Thanks again.