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There is soil stack at the back of the house - far away to get to from the front garage. That pipe is plastic at the bottom half and then metal top half. The upstairs WC, sinks, bath and shower wastes connect to it and it goes up in the air and is probably vented at the top - I assume this is...

If we said about 2 bricks down where it goes into the floor and about 4 bricks down where it empties into the drain... 130mm going down to 260mm over about 2.5m As a percentage: 5.2% gradient. If we said about 3 bricks down where it goes into the floor and about 4 bricks down where it empties...

Hi, the soil pipe goes directly into that WC. Part of it the soil pipe is underground and then it pops up out of the ground into the garage (where the WC used to be) and then through the wall and into the moved WC. It has been used like this for the last 6m with no issues. I was told that...

Hi, from the WC, which is under the stairs, to man-hole to the side of the property its 3.5m. There will be a shower room put in the garage room, this will have sink and shower waste connections going into the soil pipe running to the manhole. The concern has been that the flushing the WC...

Hi, thanks for the reply. Beneath the WC are quarry tiles, then a small 1cm layer of cement, with loose soil under that (maybe ash substrate). The AAV could be put behind the WC and behind the white stud wall - with an access hatch for maintenance? Not sure if I could put the AAV on an...

Does anyone know what kind of 110mm connections from the WC can make this piping arrangement (where I can put put a AAV behind a WC stud wall)?...

Hi, if you're asking me to do as suggested, would welcome your kind engagement pls to ensure I understand the helpful suggestions. Is this the plumbing part being suggested into the WC?...

Hi, good to hear from you and thanks for feedback. Had confidence to dig it up as found plastic piping in the manhole outside to the downstairs WC. I think I get what you are saying about the connections. Some quick queries... 1) Is the AAV necessary if there is only a 3.5m...

Think I have come to the conclusion that they may have had a point about digging up being the only option. This is what we have at the moment... I reckon I can get that white 110mm pipe down to the floor level and that will probably be good enough to get a shower 22cm above this floor (level...

Thanks for that link as was trying to find it... Hugh Jaleak "Replace Flexi with rigid pan connector, as per middle photo. Get rid of the offset pan connector joining the soil pipe to the bend. Use a double socket bend and sections of 110mm pipe as required." ...you can see I actually actioned...

Thanks. Expert indignation aside, there are some valid points that I am listening too. There is one plumber chap that I trust with doing this work and he his not available until next year so have to look for workable options as need something sooner. 1. WC soil fixings I think you realise our...

Thanks. May have lost track of older threads. Can anyone provide any brief overview of what is required to do that - any special tools or connectors needed and risks involved? Will help me assess the possibilities of doing it. I assume its digging up the concrete garage floor, somehow making a...

Thanks for reply. I think your saying that the DC90 drain connector is too much of a sharp bend and risks blockages? Digging up the garage floor and attaching to the clay pipe lower down is really is going to be a massive faff and I assume raises all sorts of risks if that piping (probs clay...

H there, welcome any advice. Moved a WC from the garage to the under the stairs room... This was the old WC in the garage room... The garage room now just has a soil stack going through to the under stairs room... The garage room is a 22cm step down from the rest of the kitchen &...

Thanks for the reply. Was what I was thinking. Be so much better if the tray could be flush with floor. If we are doing it - have to do it at this time. I'll have a go, but I need to ensure the DIYnot community is with me? Yes?? I think first course of action is: 1. Check out the pantry...

Thanks for past replies about the correct piping.... but do we have a now have a problem?.... The correct piping has led to the soil stack being 38cm high(!) The floor in this garage room will be raised to Kitchen/Pantry level and then a shower put where the soil stack is. A additional...

Hi, just a quick question... need to make a door from hallway into the new WC. In the WC there is plywood, 5cm gap in which there is a wooded subframe - and that decorative wood panelling in the hallway. Actually will have to take a bit of a corner off - for the stairs.... Plan was to...

Fanks for reply, but how the heck does any manufacture call an obtuse angle 87.5º? Small leak porbs don't matter underground and maybe little chance of pipe movement. But it leaked after a day - and if under a future inaccessible raised floor, its a smell risk compared to a solid fixed swept...

On the pantry side... Solid pan connector into the 110mm pipe. Hoping nothing leaks out of that connection now as the pan connector fins have been in and out of the 110mm pipe and so not sure if they are going to seal now. Also that 110mm pipe has less fall now. I understand the fall on...

Ch..ch..changes... Got a double socket 92.5 deg elbow and knocked more off the wall, lifting the elbow with a 110mm pipe between elbow and drain connector. Maybe 3rd time lucky?