Plumbing Question...

Beverley75

markin said:

Looks rotten to me, replace it all if it's brittle, Sand the pipe edges if you cut a piece or you will damage the rubber o ring on the push fittings or struggle to twist it in.

It also seems to be lacking any sealant around the wall to keep water out.

Noted - thank you! 💐

Beverley75

happyhero said:

Yes replace all as markin says. You'll find it all breaks very easy now as it is so brittle.

Pull the elbow off the bit going through the wall and take whole lot to Screwfix or similar and they will give you equivalent as there are different sizes. Its all just push-fit so very easy to replace. A bit of fairy liquid will make it even easier to push together.

You'll have to cut new piece to length as it will come in 1 meter or 2 meter lengths.

This stuff is all very cheap to buy so don't panic on cost.

Hope that helps you.

PS warning, that bit going through the wall may need replacing too, it looks a bit brittle too. It maybe easy and just push through the wall to replace it.

Thank you so much 

I'll do the temporary fix as suggested (fingers crossed I can delay replacing the bit through the wall for now) & take the whole lot to Screwfix for size, as you suggest.

💐

Beverley75

grumbler said:

And it's worth replacing with black fittings, they are more resistant to UV.

And it makes sense to use a bigger radius bend:

rather than a sharp one -

 

mi-key said:

Something like this https://www.screwfix.com/p/floplast-push-fit-87-5-double-socket-bend-110mm/12960

This is 110mm soil pipe. The OP needs waste pipe

https://www.screwfix.com/c/heating-plumbing/waste-pipe-fittings/cat831524

Thank you for the brilliant tips (and info on the colour & waste pipe!) 💐

Beverley75

ThisIsWeird said:

This is a nice DIY job, as explained above.

Best with two folk, tho', one on the inside to hold the pipe steady as you pull and push - as you will do.

To remove that broken fitting, grasp the bit of pipe coming out the wall firmly first, and twist the elbow back and forth. Worth removing that other length of pipe first, in which case grasp the elbow firmly, and rotate the pipe :-)

There are what looks like hairline cracks on the existing pipe as noted before, so don't be too surprised if that 'wall' pipe breaks. If it does, just be glad it happened when you knew about it, because otherwise it could be leaking inside your house for a good while first...

Can you see the inside pipe? Is it under your sink, for example?

Yes - we can see the pipe under the sink. I'll recruit my son to hold it, and do the temporary (aka outside) fix as suggested, for now. 

Thank you so, so much for your advice on how to do it 😊💐

Beverley75

Mr.Generous said:

Push fit waste, 40mm (or 1 1/2 ") black is best, I agree, although if property had white downpipes and bathroom pipes I'd just match to them. I use a smidge of petroleum jelly on the pipes to ease insertion. Grumbler gave good advice.

Thank you so much for your advice! 💐

Ectophile

Just to worry you a bit - does your house have separate storm water drains and sewers?  A previous owner of my house had decided to route the waste water from the kitchen sink, through an outside pipe to a handy external drain - rather like yours.

A few months ago, I had the local water company sniffing around, trying to work out where the pollution in their surface water drains was coming from.  It turns out that whoever had fitted the pipe from the kitchen sink had directed it to the wrong drain.

I had to drag out the washing machine and re-plumb the kitchen sink back into the soil stack, where it was supposed to be, before I started getting legal letters from the water company.

ThisIsWeird

Ectophile said:

Just to worry you a bit - does your house have separate storm water drains and sewers?  A previous owner of my house had decided to route the waste water from the kitchen sink, through an outside pipe to a handy external drain - rather like yours.

A few months ago, I had the local water company sniffing around, trying to work out where the pollution in their surface water drains was coming from.  It turns out that whoever had fitted the pipe from the kitchen sink had directed it to the wrong drain.

I had to drag out the washing machine and re-plumb the kitchen sink back into the soil stack, where it was supposed to be, before I started getting legal letters from the water company.

Wow! They dedected one house's grey water in their surface water system? Lawdie!

Section62

ThisIsWeird said:

Ectophile said:

Just to worry you a bit - does your house have separate storm water drains and sewers?  A previous owner of my house had decided to route the waste water from the kitchen sink, through an outside pipe to a handy external drain - rather like yours.

A few months ago, I had the local water company sniffing around, trying to work out where the pollution in their surface water drains was coming from.  It turns out that whoever had fitted the pipe from the kitchen sink had directed it to the wrong drain.

I had to drag out the washing machine and re-plumb the kitchen sink back into the soil stack, where it was supposed to be, before I started getting legal letters from the water company.

Wow! They dedected one house's grey water in their surface water system? Lawdie!

Grey water leaves tell-tale signs in the sewer - it is as simple to trace the problem as starting at the location the pollution is seen, then work upstream following whichever branch has the signs.  Once you've narrowed it down to a street or two it is simple to do a door-knock exercise checking each property is correctly connected.  Routine work, but quite expensive if lots of doors need knocking on.

It wouldn't necessarily be just one property, but any properties visited with incorrectly connected drainage will get the same treatment - a friendly request, followed by formal notice, followed by the local authority doing the work and billing you for it. (how far through the process (and how expensive) you want to go is up to the property owner).

Section62

Mr.Generous said:

I use a smidge of petroleum jelly on the pipes to ease insertion.

Petroleum jelly can attack plastics and 'rubber', so isn't a good choice to lubricate uPVC pipes and connectors.

A better choice would be a silicone-based lubricant (formulated for the purpose), e.g. -

https://www.screwfix.com/p/floplast-silicone-spray-40ml/3290F

...or of the things people already have at home then washing up liquid (as suggested by happyhero) is probably the least-worst option, although I'd make sure to use it diluted rather than applying it neat.

Beverley75

Section62 said:

Mr.Generous said:

I use a smidge of petroleum jelly on the pipes to ease insertion.

Petroleum jelly can attack plastics and 'rubber', so isn't a good choice to lubricate uPVC pipes and connectors.

A better choice would be a silicone-based lubricant (formulated for the purpose), e.g. -

https://www.screwfix.com/p/floplast-silicone-spray-40ml/3290F

...or of the things people already have at home then washing up liquid (as suggested by happyhero) is probably the least-worst option, although I'd make sure to use it diluted rather than applying it neat.

Thank you for your advice - I did it yesterday, and already used washing up liquid 👍