Draining for Adey filter

[Jono11]

Hi all

I am planning on fitting a magnetic filter to just below the combi boiler which is located on the kitchen wall in a bungalow. The boiler is the highest point in the system.
Do I need to drain the system completely or can I just drain enough to get the pressure to 0 in the boiler display before cutting the return pipe.

Thanks for any replies
Jono

 

[CBW]

As the boiler is the highest point in the system, then should be ok just draining from the boiler, however be careful of any pipework that goes up and over in the loft. Don’t forget to add inhibitor if required.

 

[Jono11]

Thanks for the relpy, having measured there is not enough room between the pipe and wall to use a pipe cutter and not enough room between the pipes for a hacksaw so not sure my diy skills will be up to it.
I only want a filter as a radiator got a hole in it a couple of months ago and I partially drained the system, removed it and then didn't put inhibitor in as I expected to replace the radiator in the very near future. Unfortunately I didn't get round to it until the weekend and the water now has black particles in it.
It now has inhibitor.

Jono

 

[Madrab]

Add cleaner, run system, drain and flush several times and then refill with inhibitor.