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soil

  1. G

    Heat proof "waterless" valve for Unvented cylinder T&P connection to soil stack

    I have just had an unvented cylinder fitted, and the T&P valve is connected as per regs via a tundish, and then into the soil stack using a copper pipe. But I've had to ask the plumber to come back, because it looks like he hasn't done anything to prevent sewer gases from coming into the...
    • GeoffG
    • Thread
    • connection cylinder heat soil unvented unvented cylinder valve
    • Replies: 21
    • Forum: Boiler Advice Forum
  2. SimonG

    Whats The Minimum Vent Off A Soil Stack?

    Looked a job today, possibly looking at reducing vent size as it's a difficult run. 75mm sticks in my head for some reason. Cheers.
  3. S

    Is this soil pipe installation ancient?

    Hi This is my first post on here so apologies if I'm not spot on straight off! I'm about to embark on a bathroom refurb (mostly DIY). All the existing pipework is behind fitted furniture and this afternoon I took some photos from the cistern access panel to get an of what lurks behind...
  4. M

    Soil Vent query. Bad smells

    Hi. I own a three storey house. 4 toilets. 3 showers. Since I moved in a couple of years ago there’s been a recurring (and very mild) sewer odour. Most can’t smell it but I can and it’s coming from the shower traps mostly. And sometimes the kitchen sink. At first I assumed a pipe blockage and...
  5. M

    Do I need a new Soil Pipe Vent in the roof?

    Hi, I am installing a new toilet into my en-suite bathroom (there isn't one there currently). There is an existing soil pipe under the floor that I can connect to but it is not vented and is currently just used for the shower waste. There is a toilet on the other side of my house that does...
  6. P

    Broken soil pipe sealing ring - any ideas?

    I have a 110mm soil stack which is completely boxed in, it has a branch coming into the bathroom for the toilet this branch ends in a push fit seal which a solid pipe fits into. The ring seal on the end of the branch is broken and therefore the rubber doesn't hold the pipe securely. Is there a...
  7. B

    Replacing a toilet, but don't recognise this soil flange in the floor to join a pan connector?!

    Hope someone can identify what I need to connect my new toilet pan to the vertical soil pipe in the bathroom floor. The old toilet's pan drained vertically into the soil pipe. I now need to fit a new toilet + pan connector, but the flange in the floor doesn't appear to be catered-for when it...
  8. E

    40mm waste to 110 horizontal soil

    Hi. Just about to put joists in new part of the house but got the basin and shower waste exactly where I need to go. (Ignore the top waste in the photo) By far the easiest way for me to change them round is to drop them straight down and use two strap bosses to go into the top of the horizontal...
  9. P

    What’s the max length on a horizontal soil pipe with new connection going into a drain

    As above really what’s the max length a soil stack can be run horizontally, it will be feeding a toilet and a basin . Getting confused by the tables below as table 2 says 15m and table 1 says 6m ? Can anyone help?
  10. R

    Soil stack termination inside bathroom floor

    Hi guys, I'm currently getting a new bathroom fitted in a property I just moved into. The house has a side extension, but the waste pipe had not been moved hence it's coming out the floor inside the side extension area of the property. The builder has extended this up straight into the...
  11. P

    Soil pipe drop/sleeper wall.

    Hi, was after some advice on getting a better drop on a downstairs 6m 110mm soil pipe running under floorboards. Has been in since moving in and has never drained properly. Some of this I thought was due to a 5L water saving flush but as a family stuck to a number 1s only rule till I could have...
  12. Putlog Pete

    40mm waste into top of 110m soil

    Hi all, I've got a 110mm soil pipe that rises out of my kitchen floor, under where the sink will be. How do I plumb in a 40mm waste (from kitchen sink) and also waste from a dishwasher into the top of this pipe. (Currently I have a wad of rockwool plugging the 110mm, to stop gas/smells coming...
  13. giznorm

    Soil pipe and rainwater - is this set up legal?

    Hello everyone, I could do with some opinions on the drainage set up at a house I am buying and would really appreciate your advice. I've been searching online for weeks but got conflicting information. I'm trying to see if the changes made to drainage are legal. The previous owner moved the...
  14. M

    Drilling into a soil pipe joint

    Hello, is it unheard of to install a mechanical boss onto a soil pipe joint? The only part of the soil pipe that is above the line of the plasterboard is the joint and I was wondering if anyone has attempted to drill into it? I can’t find any answers online so I’ll assume it’s a stupid...
  15. M

    Concertina toilet pan connector/soil stack leaking at joint.

    Did some repairs to upstairs cistern (using a lot of advice here - thanks). Decided to fit a new concertina toilet pan connector while everything was accessible. What we bought & how it was fitted is identical to existing. Lubricated with fairy liquid the concertina slid extremely easily into...
  16. S

    Settling a current soil and vent termination dispute

    Morning all, I’m on a new build site and the sparks has installed a extractor fan outlet within 3m of my S&V termination( i Came through a gable end first with NO opening into the fabric of the building within my 3m .... windows or vents) My 110mm termination is to vent a branch that has 6...
  17. B

    Help with Soil pipe fall

    hi im fitting a toilet, the toilet has a elbow and the run is 920mm and the drop is 150mm to the drainage pipe in the corner, im was just wanting some help with the fall as i looks to steep but the run is not far, and help please. thanks
  18. A

    How to connect WC to soil pipe at an unusual angle

    Hi! First time posting here! Great forum, a novice DIYer attempting to fit my first bathroom out. I'm installing a bathroom into a bedroom, the bedroom was previously used as a bathroom (40+ years ago) but all the waste and soil pipes have been removed leaving the soil/waste pipe holes in the...
  19. M

    Soil pipe reroute so not across window

    hi here is a pic of soil pipe recently put in to new attic bathroom. The pipe can’t go to the right of the window pictured but I am hoping there is a small change possible to creat a better route than this to change only that small piece and tuck it more neatly to the left and not overhanging...
  20. B

    Fittings to branch into cast soil pipe?

    I would like to add another WC about 2m to the right of existing WC. The existing soil pipe has only one WC (coming out the wall straight into the soil pipe) and is a straight vertical cast iron 4 inch pipe with a vent at the roof. My plan is to go out the wall with the new WC and then go down...

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