Hep2o (Hep20) Information

[MortarThePoint]

On 23/06/2022 at 08:31, Nickfromwales said:

It is the worst, sack of shit advice, any manufacturer could have given anyone. 
Categorically avoid doing this, please.

 

If Hepworth has a bad point, it’s in giving that bit of naff information. They’d do a LOT better just posting a link to the fitting I showed you. 🙄

I spoke to Wavin Technical yesterday and they said they don't get complaints about using Hep2O with compression fittings and it should be fine. They reiterated the preference of using a copper rather than brass olive and importance of using the insert.

 

True knowledge comes from experience, of which I have very little. Can you share some of your experiences here? Have you had leaks with Hep2O and compression fittings in the past (grey pipe of white pipe?)? Have the leaks presented themselves straight away or worse after some time?

[Nickfromwales]

On 29/07/2023 at 09:48, MortarThePoint said:

I spoke to Wavin Technical yesterday and they said they don't get complaints about using Hep2O with compression fittings and it should be fine. They reiterated the preference of using a copper rather than brass olive and importance of using the insert.

 

True knowledge comes from experience, of which I have very little. Can you share some of your experiences here? Have you had leaks with Hep2O and compression fittings in the past (grey pipe of white pipe?)? Have the leaks presented themselves straight away or worse after some time?

I'll wrap this up for you, as I do not have capacity to recall all the insurance jobs I've been through and everything in between. Apologies if this is a little concise. 

 

A 'plumber' with 30+ years of experience, now working mostly in 7 figure properties (very few have a 1 or a 2 as the first digit) is telling you something is a very bad idea, stop questioning it . Ringing a manufacturer to ask if there's a problem with their fittings / or a way it's fitted...........surprise!! They said it's fine. That's because their competitors spout the same shart and they want the sale.

 

If I am saying you can avoid this with 50p worth of copper pipe and you wish to seek advice elsewhere then of course that is your prerogative, so, for the last time (please) do not do what you're suggesting.

 

End transmission  

[MortarThePoint]

Hep2O Clipping Distances

[MortarThePoint]

On 29/07/2023 at 21:43, Nickfromwales said:

I'll wrap this up for you, as I do not have capacity to recall all the insurance jobs I've been through and everything in between.

...

End transmission  

 

Sorry, I do very much appreciate your help and am naturally inquisitive.

[MortarThePoint]

A major weakness in the Hep2O system is the lack of a brass wall plate elbow. They use to do them, but now only do the plastic ones (£7.90) which just aren't up to the task in my mind. JG Speedfit do a brass wall plate elbow (£11.23) and I have seen installations that use these with everything else being Hep2O. JG Speedfit make a slightly mixed statement about compatibility, but that feels like the lawyers got involved when in reality they are compatible.

 

  

 

 

An alternative would be to use a Hep2O straight coupler onto a short length of copper pipe and then a brass wall plate elbow (e.g. compression). That's extra joints and expensive if you're buying copper pipe just for that bit. If you have lot's to do, then you would be looking at:

• Hep2O Plastic Push-Fit Equal Coupler 15mm £1.75
• 100mm of copper pipe £0.30
• Brass Compression Adapting 90° Wall Plate Elbow £2.80

So £4.85 total which is £3 cheaper than the Hep2O plastic wall plate elbow. It has two extra joints though which is not ideal as adds two extra potential failure points.

I used a Hep2O Plastic Push-Fit Adapting Male Coupler 15mm x 1/2" (£4.85) into a 1/2" x 1/2" wall plate elbow (~£4) which was hard to find.

Edited 21 hours ago by MortarThePoint
Add other JG Speedfit image (toolstation)

[Russell griffiths]

Why the compression wall plate, end feed and solder it. 
then straight coupler. 

[MortarThePoint]

4 hours ago, Russell griffiths said:

Why the compression wall plate, end feed and solder it. 
then straight coupler. 

Yes, could do that way too. Probably better as I have just seen that some people advise against inaccessible compression fittings which makes sense.

Edited 15 hours ago by MortarThePoint

[Iceverge]

What exactly is this wall plate for? 

 

The only thing I've used one for is an outdoor tap and then it's been MDPE. 

 

 

[crispy_wafer]

transitioning from hep to copper and bringing pipework out of the wall neatly at a guess.  Well it was when I was playing at plumbing!

[Nickfromwales]

When fitting these in bathrooms, I use the compression ones with a short piece of copper and then Hep2O on to the copper. The pressure there is low because it’s feeding an open-ended outlet, so it’ll never see static cold mains pressure anyways.

I use brass for strength, but I’ve also used a brass compression 15mm tee with a 1/2” centre Link with a 4-6” piece of copper in each side. One side as the feed, and then the other end to a hep cap end with 2 clips either side of the tee to hold it all steady. That was for a heavy shower arm where I wanted a bit more ‘beef’ to the fixing methodology. 

[Nickfromwales]

10 hours ago, crispy_wafer said:

transitioning from hep to copper and bringing pipework out of the wall neatly at a guess.  Well it was when I was playing at plumbing!

You’d just use a Hep elbow for that and then clip the pipe where it’s on show to keep the pipe from moving?

[MortarThePoint]

11 hours ago, crispy_wafer said:

transitioning from hep to copper and bringing pipework out of the wall neatly at a guess.  Well it was when I was playing at plumbing!

Mainly for providing a point of connection at the end of runs for bath and basin taps, loo cisterns etc. I don't want Hep2O going into a loo cistern as doesn't look so good.

Edited 2 hours ago by MortarThePoint

[G and J]

8 minutes ago, MortarThePoint said:

Mainly for providing a point of connection at the end of runs for bath and basin taps, loo cisterns etc. I don't want Hep2O going into a loo cistern as doesn't look so good.

For that very reason we are hiding our cisterns in the walls.  

[crispy_wafer]

4 minutes ago, G and J said:

For that very reason we are hiding our cisterns in the walls.  

same, but for basins and baths, although likely to be concealed by furniture or under the bath I just used these to keep pipework orderly, then a  hep to 1/2 transition into and 1/2 to 15mm press fit (as I've got a tool for this) transition out for the bath, or to a 1/2" grohe (or similar) iso valve for the basin.  Probably more complicated than it needed to be, but just looks right to my eyes.

 

[MortarThePoint]

32 minutes ago, crispy_wafer said:

same, but for basins and baths, although likely to be concealed by furniture or under the bath I just used these to keep pipework orderly, then a  hep to 1/2 transition into and 1/2 to 15mm press fit (as I've got a tool for this) transition out for the bath, or to a 1/2" grohe (or similar) iso valve for the basin.  Probably more complicated than it needed to be, but just looks right to my eyes.

 

 

I've used this (or similar) for one of my showers