Post by JerryD on Sep 21st, 2005, 7:34pm
Try this!
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DIY Forum >> Plumbing Questions >> Marley plastics.... https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1124152592 Message started by wotamess on Aug 16th, 2005, 1:36am |
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Title: Marley plastics.... Post by wotamess on Aug 16th, 2005, 1:36am I am replacing a bathroom suite which has a soil stack pipe dia. of 3". (..its been mentioned that rainwater pipe was used!?) To keep things simple I have managed to get Marley fittings to do the job which are slightly larger dia. How can I fit the larger dia. Marley pipe to the older smaller pipe (..about 3mm) ..this only needs to be connected at the ground level soil stack. I also have a Wickes Soil Vent valve unit for use internally..fits on top of the soil stack ( which runs up to through the loft and exits onto the roof.) Because of the pipe dia. probs. I assume I can use this "new" soil venting unit which fits using an adapter. ??? Any help appreciated...thanks! |
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Title: Re: Marley plastics.... Post by thescruff on Aug 16th, 2005, 7:09am What make is the existing pipe and fittings. |
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Title: Re: Marley plastics.... Post by bstyle on Aug 16th, 2005, 7:51am Are you sure that it's not just the vent pipe that is 3"? This was done quite often a few years ago on the vent pipe only as it was an acceptable minimum size. |
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Title: Re: Marley plastics.... Post by chrishutt on Aug 16th, 2005, 9:00pm Could you give exact Outside Diameter (OD) measurements in mm for each type of pipe involved? I.e. 110 mm (4"), 82mm (3"), 68 mm (2.5" rainwater), etc.? |
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Title: Re: Marley plastics.... Post by wotamess on Aug 16th, 2005, 11:43pm I will measure asap...the fittings are/were Osma. |
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Title: Re: Marley plastics.... Post by thescruff on Aug 17th, 2005, 7:10am wrote on Aug 16th, 2005, 11:43pm:
Then you should be using Osma or polypipe which will fit. Go to your nearest Plumbcentre |
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Title: Re: Marley plastics.... Post by wotamess on Aug 17th, 2005, 9:29am Thanks for the advice scruff....but Plumbcentre do not stock Osma now! |
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Title: Re: Marley plastics.... Post by billythekid on Aug 17th, 2005, 1:18pm Grahams stock Osma btk |
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Title: Re: Marley plastics.... Post by thescruff on Aug 17th, 2005, 5:36pm wrote on Aug 17th, 2005, 9:29am:
Plumbcentre stock polypipe which is made by osma. |
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Title: Re: Marley plastics.... Post by wotamess on Aug 17th, 2005, 6:06pm O/ds are Osma pipe into soil at ground level = 75mm and the Marley replacement pipe dia. 82mm. So I need to adapt the 82mm down to fit into the 75mm...if you understand what I mean!...otherwise it means digging up and replacing the soil fitting which I don't think I'm capable of! |
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Title: Re: Marley plastics.... Post by chrishutt on Aug 17th, 2005, 9:35pm 75mm OD is definitely non-standard for soil pipework. Is this the OD of pipe or fitting? If fitting, it might be a socket for 68mm rainwater pipe. Can you check this? If it really is soil pipework, you could try adapting to it with one of these http://www.flexseal.co.uk/products/fern-straight.htm |
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Title: Re: Marley plastics.. Post by wotamess on Aug 17th, 2005, 10:54pm Thanks for that chrishutt..yes... 75mm is the o/d of the soil pipe ...therefore the 82mm Marley dia. poses a problem ??? ..it will slip over the 75mm dia. but then the problem will be a good enough seal. |
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Title: Re: Marley plastics.... Post by chrishutt on Aug 17th, 2005, 11:59pm What about the link I gave you? No good? I'm still curious about where this 75mm OD Osma soil pipe came from. Have you asked Osma (Wavin Plastics) about it? If they can supply a socket, the socket might just have an OD of 82mm! Then you could connect using standard soil fittings. |
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Title: Re: Marley plastics.... Post by wotamess on Aug 18th, 2005, 12:15am The link showed adjustable collars, but I don't think they would work in this situation ie. big dia. to small dia...and also the 3" soil pipe is too close to the house wall! I am going to a branch of Grahams in the morning...maybe they will have a fitting to suit...will report back...thanks once again. |
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Title: Re: Marley plastics.... Post by bstyle on Aug 18th, 2005, 12:17am Osma still sell 3" plastic pipe and fittings, I've bought it in the past. It's not the sort of thing that can be picked up at your local Plumb Center but it is still made. The 3" is equivalent to your 75mm measurement. |
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Title: Re: Marley plastics.... Post by JerryD on Aug 18th, 2005, 11:28pm I've just bought a load of 3" Osma pipe and fittings, off the shelf at Builder Center. All grey above ground stuff. Using it for draining a large flat roof (6 roof outlets). |
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Title: Re: Marley plastics.... Post by chrishutt on Aug 18th, 2005, 11:54pm I think you guys must be referring to the normal 3" soil pipework which has an outside diameter of 82mm. The poster needs something to match soil pipe with an OD of 75mm. If you have something with 75mm OD please give details. By the way, Wotamess, do you realise that you can't discharge a normal WC into 3" (82mm OD) soil pipework? The pipe must not be smaller than outlet of WC (normally 100mm). So I think you may have to dig down to drain connection anyway. |
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Title: Re: Marley plastics....photos Post by wotamess on Sep 21st, 2005, 1:51pm :-/..update on how I have managed to join the Marley 82mm to the original 75mm Osma.. I have gone with the assumption that because it was ok to use the Osma for the soilstack originally, it must be ok to utilise it now only with a larger section. Can anyone explain how to post photos...I have clicked the insert image icon but not very helpful... |
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Title: Re: Marley plastics.... Post by billythekid on Sep 21st, 2005, 3:43pm Picture posting information here btk |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:22pm Thanks for that btk!...but the photo has been placed in my profile box....not what I wanted ie. to show pics of the job in hand in this box! |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:25pm First pic.. http://img246.imageshack.us/img246/5681/13ow.jpg |
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Title: Re: Marley plastics.... Post by JerryD on Sep 21st, 2005, 7:30pm Yikes! I need a 52" Plasma screen to see all that ;D Oi! Where's it gone ;D |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:31pm Help!...just posted a photo, but its taken up the whole post box |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:34pm :DNice one jerryd...actually I'm thinking about a plasma...soon as I've finished this bathroom!! |
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Title: Re: Marley plastics.... Post by JerryD on Sep 21st, 2005, 7:34pm Try this! |
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Title: Re: Marley plastics.... Post by JerryD on Sep 21st, 2005, 7:35pm btw, my piccy is 600 pixels wide, yours was 1600! Size IS important (no matter what she says ;)) |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:43pm Photo 2 |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:46pm Photo 3 http://img210.imageshack.us/img210/6895/34kt1.jpg |
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Title: Re: oops! Post by wotamess on Sep 21st, 2005, 7:48pm Photo 3 again |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 7:51pm ..and finally.. |
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Title: Re: Marley plastics.... Post by thescruff on Sep 21st, 2005, 9:28pm Interesting use of silicon grease :-/ What have you actually used to seal the joint with |
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Title: Re: Marley plastics.... Post by wotamess on Sep 21st, 2005, 10:13pm ..sorry that should have read "sealant" not grease..I assume thats OK? |
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Title: Re: Marley plastics.... Post by thescruff on Sep 21st, 2005, 10:46pm wrote on Sep 21st, 2005, 10:13pm:
No it won't last, solvent weld or gap cement is what you should have used. |
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Title: Re: Marley plastics.... Post by wotamess on Sep 22nd, 2005, 9:27am ..thanks thescruff..can you mention what gap cement is available...nothing comes up on Google.. |
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Title: Re: Marley plastics.... Post by greg on Oct 1st, 2005, 7:01pm Really think you ought to make the soil pipe 4", for all the running about you've been doing, you could have dug it up by now |
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Title: Re: Marley plastics.... Post by wotamess on Oct 2nd, 2005, 1:18am Thanks for your two pennorth greg..might have had a go if the gas supply pipe was a little further away from the soil stack...distance being about 8 inches (or 203mm) ...didn't fancy disturbing that! |
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