Flow and return pipe

[Xuxa]

Hi guys, I moved my boiler to a new location but forgot to mark pipes return and flow, now I have to connect it back but I have no idea which is flow or return, I am not sure if it is any help but I refilled the system to find out from which pipe the water came first that is the only thing I know, hope you guys could help thanks in advance






Ireland.

 

[John the plumber]

If you moved the boiler I’m guessing your gas safe registered (if you were you would know the simple solution to your problem) Not being funny or having a go.I was just curious

 

[Xuxa]

It is oil, not gas







Ireland

 

[ianmcd]

It will tell you in the Installation instructions which is which

 

[Terrywookfit]

It will tell you in the Installation instructions which is which

Only the Boiler conns.
I assumed he was trying to identify the pipe work.