Leak on newly installed kitchen

[terryplumb]

It's more complicated than that. Flow of cold mains causes condensation on the metal parts above. So I need to completely separate the bits above and see if it still leaks at the same place.

I very much doubt you need to seperate parts above. If condensation is the cause of those drips on the lower elbow ,there would be visible moisture on the parts immediately above that elbow way before the droplets shown in your pic appear in the position that they do.
Don't know what metal parts you refer to ,if copper pipes ,fit foam insulation to them.

 

[DiyNutJob]

Well, more than likely it's the polypipe being incompatible. It needs a different insert. The surest fix is a copper pipe that needs no insert.

Everything points to a sabotage. The same "plumber" installed a non-working isolation valve for a hot tap in the bathroom basin and claimed no water flow from it was caused by low pressure. Taps at higher location worked and all taps were fed from a single source.

 

[DiyNutJob]

Here's the entire thing. Cold tap up top. Washing machine to side.

 

[jeff the gasman]

Remove the clip. It looks to be putting a strain on everything.
Should give yo more movement as well.

 

[thomp1983]

That's a poor effort by any standards, as a minimum they should of ran copper from the top Iso on right into the plastic tee and lost the straight joint above, really they should of ran from iso to copper tee then you could of had copper into the bottom elbow and washing machine.

The left should also have copper from iso to bottom elbow.

To work out what's going on your going to need to remove the rear board so you can see it all or get a camera under the unit to see the pipework behind it

 

[jeff the gasman]

Looks like a mouse cut those holes!

 

[Deleted member 294929]

It may also be mismatched fittings to pipe. The grey pipe/fittings on the left is polypipe, the white fittings are JG with the possibility of it being a piece of grey polypipe in the middle. I'll be honest I don't ever mix polypipe with anything else.

You can usually get away with interchanging HEP and JG pipe and fittings but not polypipe, it's never feels quite right. AS suggested, replace thew little bit of grey pipe with a piece of JG pipe and check the seal.

If I use this bendy push fit stuff I try not to mix brands.

In the event that I have to, then I'll bridge with Copper.

This type of system should be idiot proof but I find more & more idiots fail to install it correctly

 

[Deleted member 294929]

Looks like a mouse cut those holes!

A mouse would have done a better job with the pipework

 

[Madrab]

There are a lot of builders that are great at building but so many of them seem to have real problem with anything else, like plumbing.

That's DIY level work, certainly not the work of an experienced plumbing professional. I'd be asking then to have it all replaced back to one system, Ideally all copper pipe, for the small amount that's needed.

 

[DiyNutJob]

The builder is coming tomorrow to give me some BS. I told him to bring tools and 15mm copper pipe. I expect he will do the minimum.

 

[Madrab]

You want the 2 1/2" male elbows replaced, the ones connecting to whatever is in the back of the cabinet ( probably female 1/2" elbows) for some weird reason, to the same types.

Then just use all the same feckin' fittings, either brass, or pushfit but ideally soldered. It's not difficult to look even half proficient.

 

[DiyNutJob]

To replace that would involve taking apart the new kitchen. That will come at a hefty fee. I would not pay a penny more for clowns. They have done enough damage.

 

[DiyNutJob]

I have polypipe behind the chipboard. If the elbow needs to be replaced, I only need to do the cold side. Hot side is already polypipe and it's very low pressure. I should be OK to use the white elbow if I have the correct pipe insert for polypipe?

 

[DiyNutJob]

3 types of polypipe inserts were used. The one on the left was used for fixing the leak. It looked wrong but stopped the leak anyway. So, which of these is the right insert to use for joining polypipe to the white connectors?

 

[thomp1983]

Thought the builder was coming to fix it?