Boiler leak on supply/return pipe

[Vonsprockett]

Hi Chaps

I have a leaky pipe in my boiler, so keep losing pressure on the central heating loop. The 22mm pipe has a bend in it so I was wondering if I could replace it with a braided hose but after buying one with 22mm speedfit connectors at each end I noticed that the actual internal hose was not 22mm. Will this cause a problem due to pressure if I fit it. It's not anywhere near gas and I've already replaced the PRV and the filling loop. I have attached a pic showing the faulty pipe with the plumbers mait on it.

 

[steadyon]

I wouldn't:

a. Doubtful if a braided hose will take the temperatures and pressure for any length of time.
b. It will seriously restrict the flow of water around your system.
c. If, as is likely, it fails in due course, you'll have a hot water flood on your hands.

Get someone in to bend and fit a replacement piece. Freeze pipe at floor level, isolate boiler at valve, cut old pipe leaving as much straight as possible from floor, bend up and fit new piece, solder carefully to frozen pipe, compression fitting to boiler. If not enough pipe above floor to solder after freezing, use compression straight coupling. Alternatively (to freezing) drain down as far as necessary then definitely solder, re-fill with new inhibitor.

If you can solder you might be able to make a piece up with two 45 degree elbows. I suspect compression fittings would be too bulky for the space available.

 

[Unregistered]

Thanks - the flow question was my main concern. The bend is too slight for elbows, so really need a piece bending. As I don't have a 22mm bender I guess best option would be to get someone in to replace the pipe. How much should I expect to pay for this if I drain the system before they arrive ?

 

[Vonsprockett]

What's the issue ?

 

[Stigster]

Looking at your picture, there is definitely enough space to use two 45 degree bends to make up the offset you require. If the offset that is required is at least 22mm centre to centre then it can be done.

 

[SimonG]

Why you change the prv and filling loop?

 

[lame plumber]

if you employ someone let them do the whole job, nothing worse than having to work round someone trying to save money, who then blames you for issues they cause.

 

[SimonG]

Doesn't need draining to repair anyway. Plus you can't beat seeing the actual leak before you fix it. Plus any saving will be lost with that crap round the pipe to come off.

 

[Chalked]

I may be wrong. But that plastic flexi looks like condensate! If that has split, it will drip and rot through copper in weeks!
Looks like it may have caused your leak on the bend and looks like it's causing more corrosion on the pipework below.

 

[Tjdservices]

Also bear in mind that you need 1m of copper pipe from the boiler flow and return before changing to plastic or flexi so if it is within 1m of the boiler you can't use the flexi

 

[Unregistered]

Because they both had separate leaks.