How to support pipe?

[Manbatius]

Hi all,

we have a run from our sink waste to the soil stack, that is sagging as it has no support.
But it is about 12cm out from the wall, so the conventional clips will not work by themselves.

I can only think of putting a huge block of something 12 cm deep on wall and screwing to that.
Or.... going full bodge and just putting a huge L bracket on the wall to support it.

Also not really wanting to disturb/ remove the pipe as the connectors look fragile.

Spoiler: Pic below (massive)

I am sure there is an obvious solution, but my fixing brain with, house, computers, work, life just is not playing ball!

 

[rodders]

You can get muson rings, bit of stud bar and a base plate. But industrial looking though.

 

[ANDARIAL]

I think you mean `munsen rings`
That would be my recommendation too

 

[rodders]

Never been a strong speller lol

 

[200sols]

I'm gonna be 'that guy'. Cut the pipe and bring it closer to the wall, they're just compression fittings and very easy to use.

 

[ANDARIAL]

I'm gonna be 'that guy'. Cut the pipe and bring it closer to the wall, they're just compression fittings and very easy to use.

Doh why did i not think of that

 

[Participant]

Personally if it was me, and I know you said you didn't want to disturb the fittings, I would replace that whole run with some nice clean new solvent weld pipe and refit in solvent weld.

Will look much nicer and allow you to reposition the pipe close enough to the wall to use some nice white clips.

Edit: just to point out that compression waste pipes (if that's what they are) aren't compatible with solvent (but vice versa works).

 

[Reuben klang]

I’d redo it in solvent but I’d also be tempted to lag it. Chances are that’s going to freeze in the winter.

 

[Manbatius]

Wow, lots of replies cheers guys.

I had considered replacing it, as its looking a bit.... limp!
Had considered taking it closer to the wall, but wondered if it had been out that far for best practice.....
I have been out there a bit recently as a lot of the waste pipes have been siliconed in not cemented and the silicone was falling apart....

This pipe has not frozen, however.... the bath waste, which comes out almost level on that flat roof has (can just see it in photo on back right), virtually no fall. a few degrees. froze in winter last year. But that is a story for another day.

I expect they are compression fittings, will have a look at all sorts including munsen rings on a trip to wickes tomorrow!
Always been a tad worried about the solvent stuff (I have no idea why with the amount of stuff I have done in this house and learned on the way!)

 

[Participant]

I expect they are compression fittings

They're definitely compression fittings, but the question is whether the pipe coming through the wall is solvent ABS or compression.

If compression pipe, solvent won't work. If in doubt, suggest you just stick with compression fittings and replace the pipe with ABS but use compression fittings at the elbow into the wall. If that makes sense.

 

[Deleted User 298457]

Rip it off and start again, including the bit going through the wall.

 

[Tesla]

Rip it off and start again, including the bit going through the wall.

This, plus what's the other waste pipe laying on the flat roof?

 

[Manbatius]

This, plus what's the other waste pipe laying on the flat roof?

Bath waste. Level coming out the bath across. It maybe has a one inch drop across the whole roof and is a pain.

There is access inside for this.

For the sink there is not access inside from what I could see. (One of those wooden vanity ones).

Will take another look, as there should be logically.
Can confirm there is access from inside.

However. Is the reason it's not 12cm out.. because the soil stack it connects to is that far out. So if I put a new pipe and put it close to the wall...
Feels like I will need a turn further along.

Torn what to concentrate on. As the bath waste is the one that causes issues sometimes. This just needs support. Hah.

 

[Simon42]

Edit: just to point out that compression waste pipes (if that's what they are) aren't compatible with solvent (but vice versa works)

There isn't a compression size pipe - there is push fit pipe and solvent weld pipe.

Push fit and solvent weld pipe have similar internal diameters for either 32 or 40mm pipe, but solvent weld pipe has a larger outside diameter to allow for the solvent weld. For example the OD on solvent weld 40mm is about 43mm and for push fits its just a fraction over 41mm. Compression fittings will generally fit both types of pipe.

 

[Nemiyen]

I've got an exact same job to do as well tomorrow. The pipe comes out the wall a bit too far (poor workmanship from the person that did the pipe) and then comes back closer to the house as it makes its way towards the stench pipe stack.

I'm going to replace with black pipe and push fit fittings and clip as much as possible before it gets too far away from the wall.

Those Munsen clips are a good shout though and I'll look at getting some of these as well because as the pipe goes round the corner to the stack / stench pipe it's about 10cm away from the wall due to the positioning!

 

[Reuben klang]

I've got an exact same job to do as well tomorrow. The pipe comes out the wall a bit too far (poor workmanship from the person that did the pipe) and then comes back closer to the house as it makes its way towards the stench pipe stack.

I'm going to replace with black pipe and push fit fittings and clip as much as possible before it gets too far away from the wall.

Those Munsen clips are a good shout though and I'll look at getting some of these as well because as the pipe goes round the corner to the stack / stench pipe it's about 10cm away from the wall due to the positioning!

Push fittings? Why? Use solvent for drainage.

 

[Nemiyen]

Push fittings? Why? Use solvent for drainage.

You're probably right as I've had to replace the elbows in the last 10 years at least once as the sun weakens the bend and the plastic cracks, causing the o ring not to seal correctly.

The thing is I can do push fit easy but solvent welding might be a little more skillful, so to speak. I'm sure I could do it but the inside is push fit as well so I've just continued the trend outside.

The job is done now and it only took 15 mins or so to do the actual pipe, cutting as well because I bought a ratchet pipe cutter from the rain forest that worked like a charm.

The hard bit was the girlfriend wanted new pipe clips as the old ones had gone grey (white pipe, black clips from buying the house!) and yep, the new clips weren't a perfect match for the hole locations so had to get my drill out and drill new holes etc.

So probably about an hours work in all due to having to move a crap load of stuff to get to my drill and it not being an SDS type one for brick drilling.

 

[FNG]

Solvent welding is the easiest type of fitting there is. Solvent on both bits of pipe, push together and you are done. The only problem is when your run doesn't quite fit, despite checking it a dozen times, and then you have to find a big enough bit of pipe to cut and re-run from....

 

[Deleted User 298457]

You're probably right as I've had to replace the elbows in the last 10 years at least once as the sun weakens the bend and the plastic cracks, causing the o ring not to seal correctly.

The thing is I can do push fit easy but solvent welding might be a little more skillful, so to speak. I'm sure I could do it but the inside is push fit as well so I've just continued the trend outside.

The job is done now and it only took 15 mins or so to do the actual pipe, cutting as well because I bought a ratchet pipe cutter from the rain forest that worked like a charm.

The hard bit was the girlfriend wanted new pipe clips as the old ones had gone grey (white pipe, black clips from buying the house!) and yep, the new clips weren't a perfect match for the hole locations so had to get my drill out and drill new holes etc.

So probably about an hours work in all due to having to move a crap load of stuff to get to my drill and it not being an SDS type one for brick drilling.

Na it's a piece of cake and the pipe is dirt cheap so just do it again.

 

[Manbatius]

This, plus what's the other waste pipe laying on the flat roof?

Pics at the bottom re flat pipe

Guys back to planning this, after doing more important things.... like fitting a floating shelf to host pokemon, painting the front fence. etc
I forgot I actually have had experience doing this before (downstairs it cracked at the elbow out the wall so replaced the whole lot, from inside)
So thinking of doing both pipes.... properly.

Sink Waste

As someone mentioned rip it out and start again. My question is this end going into the soil stack...

Spoiler: Pipe other end

Issue is, I am not sure what this connector is for changing to solvent, looks like it has a black rubber seal.
So thinking to stick with compression, but even then... pull it and hope....

Bath Waste

As for the flat pipe...

Spoiler: Bath waste exit

Spoiler: bath exit

The fall is about... half a centimeter its basically slightly propped up by a bit of rolled up felt. its likely a couple of meters run...

Spoiler: Pipe end mess

This is how it ends... its a mess, so not confident on going solvent here either.

The plan
So sink waste one, replace with push fit, out the wall, bring closer bracket to wall... then hope 12 cm out does not cause an issue with that end connection, if it does double elbow.

The bath waste... I am not sure the correct fix, other than raise the bath, think the suites about 2 years old, but its a historic issue, seemingly, looking at other extensions along street, ours is slightly higher than most.

Will take it off and clean it as every few months it leaks at the end elbow. But could do with a better solution long term.
Have tried to add the images through imgr bb code, half work for me on this test, others worked earlier not now (maybe my settings, anything labelled jpeg on forum i cannot see...).... so hopefully they work for others.