Pipes drained - how to reverse

graham17_2

Hey again,

Thanks for the continued helpful replies. I'll consider the getting someone in, but will see what it's like when I get in.

One other thing, when you said to refill the boiler, how do you do that? I'm assuming my mum knows since she has the same, but just want to check. It's a combi boiler. It's te Vokera Linea range if that helps.

Thanks again,

Graham.

LandyAndy

blckbrd wrote: »

Your pipes to taps/loo/boiler may also have individual isolation valves - can look like the top of a screw or a wing nut type thing - that need to be opened.

Couldn't find a pic as I don't know tme proper term (can you help LandyAndy ). When the slot in the 'screw' is going in the same direction as the pipe it's open, when it's at right angles it's closed.

How's this;). Isolating valve is the term I believe.

poppysarah

Have a read on the interweb. You might find info on your own boiler.
Are you going to put inhibitor in?

blckbrd

graham17 wrote: »

One other thing, when you said to refill the boiler, how do you do that?... It's te Vokera Linea range...

Do a net search on the exact model and you may be able to find a manual.

The water inlet (and the gas) to the boiler will have a valve that needs to be opened. Then you'll need to ensure the correct pressure according to the boiler model. Not hard - if it's too high just discharge some water.

Then ensure the gas is on, the pilot is lit (this may not be a seperate process or may need you to 'reset' - just the turn of a knob on mine) and turn on a hot tap to 'call for' some hot water. If you don't hear the boiler firing up you may need to call someone in after all.

googler

Like previous poster said, look on the net for an instruction manual for your boiler, wherein you'll find start-up instructions for that model.

The drain tap for the central heating should be at the lowest point in the pipework - if it's anywhere above this, it's impossible to defy gravity and get water to run uphill.

It may be better to ask this on a DIY forum - try the plumbing and central heating forum here - www diynot co uk

"So is it best to bleed radiators before switching on boiler, or after? Bleeding them is fairly simple, yea?"

If the system has been drained already, there's no point in bleeding it - the idea of bleeding is to release air from the radiators and heating pipes so that there's only water in them. When drained, there's nothing but air in them. You may want to make sure all the bleed valves are closed before refilling the system, too!

If you have a helper, I think the refilling method would be best for the helper to open the bleed valve at the highest point of the system and monitor this while you fill from the filling loop at the boiler. When water reaches this point the helper closes this bleed valve and you increase the system pressure to the recommended level - there may be variations in this according to manufacturer's instructions, though. Check on diynot and see what the plumbers say there....