Leak

[AlPatt]

Hi people.
Bad experience with plumber.
I have a 15ltr hyco water heater which is leaking at the hot water connection.....1/2 inch BSP to 15mm.
Is this relatively easy to fix or do I have to call another plumber....more expense .Cheers

 

[footprints]

Can you post a picture of the offending connection lots of possible configurations for ½" to 15mm.

 

[AlPatt]

I could try.....not too good with this internet thingy. Thanks for the reply

 

[footprints]

If you take a photo with your mobile save it, then when you go to post click the attach files box.

 

[AlPatt]

Hope you can see that buddy.

 

[footprints]

I think those are designed to take a ½" tap connector with a washer.
What you have will work I assume it drips from where the fitting screws onto the heater.
Lots of ptfe tape has been tried.
The heater pipe looks like plastic so care needed not to over tighten required.
What I would do is remove all the ptfe tape, use Fernox LSX sealant on the male thread of the heater pop a ½" tap connector washer inside the female fitting (it will usually fit snugly on the ridge at the bottom of the thread) maybe a smear of sealant on the washer too (belt and braces) screw it down till the washer is pinched up ( will be almost hand tight till it touches then a light pinch up) .
Reassemble the compression joint on the other end with a smear of Fernox should be sweet!

Fernox LS-X External Leak Sealer - 50ml | Wickes.co.uk

Fernox LS-X External Leak Sealer - 50ml

www.wickes.co.uk

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Should get them at any plumbers merchant.

 

[AlPatt]

Diamond geezer.

 

[fixitflav]

Hope you can see that buddy.

My guess is the fittings are

Flomasta Compression Adapting Female Coupler 15mm x 1/2" - Screwfix

Order online at Screwfix.com. Female couplers. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

1/2" female thread x 15mm compression.
The cold side has been done properly, with olives. But on the hot side the bend looks like it ends in a tap fitting, and doesn't make a seal with the coupler. Bodged up with PTFE to try to fix it. If there's room, could replace the bend with one like the cold. I don't think you can get a coupler with a flat face for a tap fitting, but if you can that would do it. Or you could try filing the existing one flat.

 

[footprints]

Just an update,
The top fitting will only need fernox on the end of the copper tube around the olive not on the thread it's not needed and will just look messy.
when tightening the top nut best to hold the fitting against turning with another spanner/grips as you tighten the top joint.

My advice is for the blue side I am assuming the red is OK as it looks fine in the picture.

No doubt someone will say compression joints with an olive do not need sealant, true, but as yours is suspect don't mess about put sealant on it!

 

[ianmcd]

is the pressure releif valve also dripping ?

 

[fixitflav]

The top fitting will only need fernox on the end of the copper tube around the olive

You said in #6 it's a tap fitting, and I think you were right, about the hot side.

My advice is for the blue side I am assuming the red is OK as it looks fine in the picture.

The OP said it's the hot side that's leaking (presumably the red one!)

 

[AlPatt]

Thanks for the responses guys. Just clear up.....it's the hot fitting that leaks ( hot )

 

[footprints]

Well who's a daft footprints then!
Is it the top connection with the ptfe or the lower one that is leaking.

 

[AlPatt]

It's the lower fitting....I think it's called a female iron in plumber land

 

[footprints]

Then my advice about lsx and a washer in the fitting will work.

The upper one should work with a new washer too as long as the end is flat and smooth as said by fixitflav