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[Varche]

I am in a bit of a fix.

My HBV let go spectacularly earlier today. It gushes out from the right hand side. I don't think I have another one lying around but that will be my first approach.

I need to go out in the car tomorrow so any suggestions for a get it working again fix will be welcome. This is one of the down sides of living in the middle of nowhere and having only one car!

My thoughts are on making up something with three pipes and a tee out of copper 15mm plumbing fittings and pipe.

Anything simpler? Maybe insert a piece of 15 mm pipe between two pipes and blank off the third (bolt or equivalent and a jubilee clip).

Getting a replacement HBV will take the local dealers a few days.

[Kevin Wood]

Yep, just tee all the pipes together and block the vac pipe is the simplest bodge, I would think.

[Marks DTM Calib]

I would block off the return pipe and join the heater matrix feed pipe to the helter skelter pipe....you could also add an isolating valve if you wanted!

I have often wondered if you could fit a valve as per the 2.5TD using the above.

[Osprey]

I'd rig something up using a 15mm T if in the UK.  Last time I did any plumbing in France they used all even numbered pipe sizes - 12mm, 14mm, 16mm, 18mm etc. (And soldered them into each other to fabricate reducers!).  If you know that it's just 15mm in Spain, ignore this post (like the rest of mine - I know  )  Otherwise it might be worth checking the diameters on the HBV first. 

[Varche]

Yippee, I have found a S/H  HBV.

It might be an OK one. Also sorted out some 15mm copper fittings.

It has stopped raining so here goes.