Hep2o pushfit grey, Grab Ring Failure ?

[JonInvestigations]

I had a leak coming out from this reducing tee just after a month after installation.

I think it’s an old Hep2O tee.
I took it apart and found that the grab ring had scratch the PEX pipe.

Making me think the pipe had move out of its place.
Has anyone else have the same problem and any idea how this could happen ?

 

[Sharp Point]

What brand is the pipe? Hep20 is grey

 

[Sharp Point]

What brand is the pipe? Hep20 is grey

I ask, as the theory is... you use the pipe brands own inserts and that pipe may not use that insert

 

[Welder]

That looks like a HEP ftg on JG pipe.
In my experience its pressure fluctuations that have caused that hi lo hi lo. Was it on the hot side of an UVC?

 

[Aire]

What brand is the pipe? Hep20 is grey

Hep20 is white now

 

[Sharp Point]

Hep20 is white now

I don’t know, I haven’t used hep20 in about 10 years, it could be pink for me

 

[Sharp Point]

I don’t know, I haven’t used hep20 in about 10 years, it could be pink for me

John guest for me, if I need to use plastic.

 

[Sharp Point]

Hep20 is white now

Also... the fitting isn’t white, so maybe a case of cross contamination

 

[Aire]

The grab ring has scratched the pipe but not where the O ring sits. Looking at the marks it looks like the scratches have occurred while whoever fitted it, was pushing and twisting. When was it installed? If it's a month ago then chances are that has been laying around for a while before been used as hep changed their fittings years ago.

 

[Sharp Point]

That looks like a HEP ftg on JG pipe.
In my experience its pressure fluctuations that have caused that hi lo hi lo. Was it on the hot side of an UVC?

Or severe water hammer

 

[townfanjon]

Its wrong , the seal goes into the fitting first not the grab ring

 

[Welder]

Its wrong , the seal goes into the fitting first not the grab ring

That made me stop and think and I haven't got one to check Jon. However, our very own 'old bugger' looks to be 100% correct.

His back's beggered, but his brain still works - bless him

All hail Emperor Jon

 

[Sharp Point]

Yep, you da man John. I never picked up on it.... embarrassingly!

 

[Welder]

Yep, you da man John. I never picked up on it.. embarrassingly!

Agree, very embarrassing. Just shows though: look for the bleedin' obvious FIRST.
(I'm trying desperately to justify my utter incompetence as I look into the mirror...)

 

[Sharp Point]

Also, it may have wrong pipe/ insert combo as well

 

[Sharp Point]

complete recipe for disaster if so...

 

[Welder]

complete recipe for disaster if so...

So long as you use the correct pipe insert (so it maintains an appropriate external dia of 15mm) that should not matter to be fair.

 

[Harvest Fields]

Yep, you da man John. I never picked up on it.. embarrassingly!

I don’t use hep to be fair

 

[JonInvestigations]

That made me stop and think and I haven't got one to check Jon. However, our very own 'old bugger' looks to be 100% correct.

His back's beggered, but his brain still works - bless him

All hail Emperor Jon

View attachment 36858

How about this fitting it has the metal grab ring first ?

 

[Aire]

Its wrong , the seal goes into the fitting first not the grab ring

Not with the metal grab ring it doesn't, how it is in the photo is correct

 

[Harvest Fields]

How about this fitting ?

View attachment 36859

That is push fit the other is compression. Different beast altogether.

 

[townfanjon]

Different version but this is correct

 

[townfanjon]

Jon , your fitting is a polypipe with what looks like a speedfit as the actual pipe .

 

[Sharp Point]

Just had a thought, maybe someone has swapped the rings round on purpose, those score marks look like what could be made if the grab ring was removed physically..... just saying like

Where’s the whistling emoji, when you need one?

 

[Best]

The old Hepworth grey fittings with metal grab ring had the O ring on the water side in the demountable Hep fittings and the opposite on the slimmer non demountable fittings.
Even I know that and I don’t use plastic rubbish

 

[Chuck]

I had a leak coming out from this reducing tee just after a month after installation.

You'll be wanting to replace/rework every joint made as part of that installation then. If one is like this, it's a sure thing that there will be others

 

[Ric2013]

I must say I've taken apart fittings that old (under a caravan that was going to be scrapped and needed zero-budget work done), bent the metal grab rings to about the right shap, and reassembled using modern Hep pipe and it held (at around 5 bar) until the caravan was scrapped a year later. (No, this wasn't a paid job, in case you're wondering.)