View Full Version : Question For The Org Plumbers..
Hi all!
Shall be installing the pipe in the wall for my new electric shower tomorrow (cold feed only).
My question is, will condensation be an issue when buried in a wall behind tiles?
I think I heard somewhere once that I may need wrapping in something but surely pipe insulation is too large / overkill?
Thanks!
Bluepete
22-03-13, 07:27 PM
Oh.
Not me then.
I'll get me coat!
Pete ;)
Bluefish
22-03-13, 07:33 PM
I don't believe it would be an issue, never seen one lagged/wrapped, if there was room then yes lag it but if not, maybe use plastic pipe?
Oh.
Not me then.
I'll get me coat!
Pete ;)
Sorry Pete! If you have some useful input then please do input it!
I am going to use plastic, am I being stupid and thinking plastic wont gather any condensation...?!
The shower says it doesn't recommend using push fit connectors but I chucked one on just to see and it fits fine!
Specialone
22-03-13, 08:24 PM
Condensation won't be a problem, plastic fittings will be, use speedfit pipe but compression fittings (with inserts).
If you have a problem with the shower, if you haven't fitted it exactly to their recommendations, they will use this to get out of any warranty claims.
Bluefish
22-03-13, 08:24 PM
Condensation will be minimal with plastic, don't forget to get a qualified electrician to wire it up and write out the necessary documentation ;0)
Bluefish
22-03-13, 08:26 PM
Yeah don't forget the inserts, bet you never have eh Phil?
I used plastic on my sisters and swoped to chrome plated using a compression fitting .
Plastic has better thermo insulation than copper and as its buried under tiles then not much water vapor is likely to reach it.
Specialone
22-03-13, 08:30 PM
Yeah don't forget the inserts, bet you never have eh Phil?
Nope, I haven't but I've seen many DIY jobs that haven't used them, I literally touched a radiator pipe once and it shot out of the compression side of the valve, a little knowledge is dangerous.
Nope, I haven't but I've seen many DIY jobs that haven't used them, I literally touched a radiator pipe once and it shot out of the compression side of the valve, a little knowledge is dangerous.
Now that's s "You've been framed "moment lol
Condensation won't be a problem, plastic fittings will be, use speedfit pipe but compression fittings (with inserts).
If you have a problem with the shower, if you haven't fitted it exactly to their recommendations, they will use this to get out of any warranty claims.
I got the 15mm pipe, but couldn't find any plastic compression fittings. Are you saying that the speed fit fitting are no good?
I was also contemplating getting some 22mm plastic pipe and putting the 15mm pipe inside that (if it will fit) so that its easily adjustable when tiled, or is this a stupid idea?
Condensation will be minimal with plastic, don't forget to get a qualified electrician to wire it up and write out the necessary documentation ;0)
I am the electrician!
dirtydog
22-03-13, 09:43 PM
I got the 15mm pipe, but couldn't find any plastic compression fittings. Are you saying that the speed fit fitting are no good?
I was also contemplating getting some 22mm plastic pipe and putting the 15mm pipe inside that (if it will fit) so that its easily adjustable when tiled, or is this a stupid idea?
I think what he means is use the plastic pipe but use normal brass compression fittings.
dirtydog
22-03-13, 09:58 PM
Nope, I haven't but I've seen many DIY jobs that haven't used them, I literally touched a radiator pipe once and it shot out of the compression side of the valve, a little knowledge is dangerous.
Unfortunately its not just DIY'ers that forget to use inserts. I had an emergency callout not so long ago to a dentists that had had the builders in over the weekend to fit a couple of hand basins.
When staff arrived in the morning the water was still turned off so they turned it on, few minutes later there was mains pressure water shooting out from behind a newly installed cabinet.
First problem was the pipe had been cut about 25mm too short, no inserts used, jg fitting not tightened up.
The builders got quite an expensive bill for all the lost work in the morning as well as my bill!
The fitting used on my sisters shower and my domestic hot water are normal screwfix supplied compression fittings with soft (copper) olive on plastic pipe (with inserts) .
No issues with that but then I'm just a diy bod putting right what a spose pro builder did ;)
otaylor38
22-03-13, 10:27 PM
What's wrong with using hep2o fittings? Never had any problems with them. (You do need a little tool to take them off the pipe if needs be though.
Shouldn't need lagging. Copper pipe going through a brick wall would require lagging as the lime in the cement can eventually eat through the copper and cause it to pin hole. But if its just behind tiles, no problem there.
Hep is easier and cheaper to use (fittings are more expensive though). I prefer to use copper where ever possible though copper though.
otaylor38
22-03-13, 10:27 PM
And ofc, as said. Don't forget the inserts!!
tigersaw
22-03-13, 10:53 PM
What's wrong with using hep2o fittings? .
They look wonderful! Never seen them before
otaylor38
22-03-13, 10:56 PM
Yeah lol.
They are pretty good. Just make sure you mark the pipe about an inch from the end, so you can see how far you've pushed it in. You can do without f ups like that when you turn the water on lol.
tigersaw
22-03-13, 10:58 PM
The video says you know you have pushed it in far enough because 'you can feel the rumble' ;)
otaylor38
22-03-13, 11:01 PM
The rumble? U can feel the rumble of the ceiling falling down if you haven't lol.
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