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Adding Inhibitor to Sealed Central Heating - HELP!!


 
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devellion

from United Kingdom

Joined: 12 Oct 2009
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Location: Hertfordshire,
United Kingdom
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PostPosted: Wed Nov 03, 2010 5:07 pm Reply with quote

Huy Guys,

Heeeeeeelp!!!

I have one of these;


and one of these;


to dose the sealed central heating unit.

I have emptied the entire system of water....

I then attach the bottle to the dosing kit and screw it onto the filling loop. I then open the valve and it will NOT go in. Aaaargh!! I've squeeze the bottle so hard it nearly burst but the liquid will not pass into the boiler?!?!

What am I doing wrong? I can't see anywhere else in the system where I can add the chemicals. I don't understand why it won't go in. If I fill the system with water it goes in fine. icon_sad.gif
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seco services

from United Kingdom

Joined: 03 Dec 2007
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Location: Essex,
United Kingdom
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PostPosted: Wed Nov 03, 2010 5:13 pm Reply with quote

you never thought about the check valve in the filling loop

remove a radiator plug and pour it in if the systems empty.


Last edited by seco services on Wed Nov 03, 2010 5:17 pm, edited 1 time in total
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devellion

from United Kingdom

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Posts: 141
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PostPosted: Wed Nov 03, 2010 5:16 pm Reply with quote

What's the check valve?

I tried to squirt it in a radiator and it just p!ssed out everywhere but in the hole. Maddening.
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devellion

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PostPosted: Wed Nov 03, 2010 5:18 pm Reply with quote

But if the mains water passed though the valve when open why can't the inhibitor? :S
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seco services

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PostPosted: Wed Nov 03, 2010 5:20 pm Reply with quote

mains is a lot more pressure than you holding a bottle.

can't see how it pi**ed out when you poured it in a rad.
check the iso valve is opening and not just the plastic lever turning.


Last edited by seco services on Wed Nov 03, 2010 5:24 pm, edited 1 time in total
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devellion

from United Kingdom

Joined: 12 Oct 2009
Posts: 141
Location: Hertfordshire,
United Kingdom
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PostPosted: Wed Nov 03, 2010 5:23 pm Reply with quote

Yeah I wondered that. I tried to pour it in the bleed valve but it just poured all over the floor no matter how hard I pushed the nozzle in.

God this should be so simple. What other options do I have I just can't see where else I can add it? Cut my losses chuck the liquid away and use a concentrate to inject into a rad?
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seco services

from United Kingdom

Joined: 03 Dec 2007
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Location: Essex,
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PostPosted: Wed Nov 03, 2010 5:27 pm Reply with quote

i use a funnel on a tube that i've adapted to fit a rad and it never fails to fill.
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devellion (3 Nov 2010)
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devellion

from United Kingdom

Joined: 12 Oct 2009
Posts: 141
Location: Hertfordshire,
United Kingdom
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PostPosted: Wed Nov 03, 2010 5:31 pm Reply with quote

I opened both bleed valves on one rad and it just came out the other one. With just one bleed valve open it wouldn't go in as there is air inside and just went all over the floor. icon_sad.gif
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seco services

from United Kingdom

Joined: 03 Dec 2007
Posts: 15603
Location: Essex,
United Kingdom
Thanked: 1240 times

PostPosted: Wed Nov 03, 2010 5:33 pm Reply with quote

is the rad empty ? icon_idea.gif
are the bottom valves open ? icon_idea.gif
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devellion

from United Kingdom

Joined: 12 Oct 2009
Posts: 141
Location: Hertfordshire,
United Kingdom
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PostPosted: Wed Nov 03, 2010 5:36 pm Reply with quote

Maybe I should try and pour it in an upstairs radiator that is more likely to be empty. The valves are open. Thanks for all your help. I've failed at this twice now and had to fill it back up again let alone wasted half the inhibitor.

I said inhibitor but I'm actually using cleaner as two of our radiators are very noisy in the morning ans wake us up. There is no air so I can only assume its debris the cleaner will remove.
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