Plumbing under the kitchen sink

[kidgreen61]

Pipes must be bone dry to solder, that usually means getting the wet vac out to empty them.
Make sure old pipes are spotlessly clean too.

 

[Jupiter01]

What happens when they are not wet and you attempt to solder?
Trying to correlate this to the difficulties I was experiencing yesterday!

Also I can appreciate that standing water in the pipe is an issue but what if it has had water run through the pipe but is now empty but still slightly wet?

 

[kidgreen61]

At the risk of repeating myself, bone dry, & clean

 

[Madrab]

If the pipes have standing water in them, at or close to the site you want to solder, the water will act as a heat soak and draw the heat away from the area and it will never get hot enough, that and any steam that's created can cause a weak joint.

If the pipes were wet but are now empty then heat 6" of the pipe away from where they are to be fixed until it stops steaming, that should ensure the soldering site is dry.

 

[Jupiter01]

UPDATE: I've redirected these pipes through the unit. Need to clip them back.

Thanks for your help and would welcome your feedback.

 

[denso13]

The back of units tend to be flimsy so attached a piece of timber to the back first, even with adhesive, then clip the pipes to that.

The hob looks awfully close to the sink bowl!!

 

[Madrab]

The hob looks awfully close to the sink bowl!!

Took the words right out of my mouth. Not a normal setup to have a gas hob that close to the sink TBH.

 

[Jupiter01]

ohh.
I was really cramped for space and couldn't see any other choices. Infact by creating the space that I have between the sink and the hob, I have inadvertently pushed out the tap hole. This is now very close (if not on) the upright shelf of the unit. I am guessing that I may need to cut some of the back corner of this unit to slot in the tap.

 

[Madrab]

Yup, not unusual to have a centre section sitting where the tap may be so a slot needs to be cut down and out from the carcass.

Also appreciate that if the hob has to go there then it has to go there. Not sure what, if any, clearances are required from a sink, the distances are mostly centered around combustible surfaces, it's just a little unusual to have it so close that's all.

 

[Jupiter01]

I did see in the manual that there were stipulated distances from wall. Can be reduced if I am tiling - the case for me. Nothing about distance from sink

 

[Agile]

And when you start fitting cupboards on the wall check the clearances above and to the side of the gas hob.

Details should be available in the manual for the hob.

 

[MeldrewsMate]

ohh.
I was really cramped for space and couldn't see any other choices.

It's not prohibited, only that there will be no convenient space to place plates or pans to that side of the hob, and there will be a risk of inadvertant splashing over the hob.