Replacing Rad - Inhibitor or protector ?

[topgazza]

I'm replacing a new rad because its faulty and before had to remove and drain it afew times.

I have a unvented system which of course has a scale preventer cathode in the tank.

When the new radiator arrives should I put a bottle of inhibitor or protector in to compensate for all the lost water or leave it as it is ?

Also are there any kits that allow you to fill a rad up through the removed bleed valve with the solution ?

Cheers

 

[swbjackson]

You can get aerosols of inhibitor and Calmag make one in a squeezy bottle.

 

[Armo74]

Screwfix do filling spouts.
I knocked one up out of a funnel,short piece of hose,short piece of copper pipe and an isolation valve. Oh, and a couple of jubilee clips.
I use X100 inhibitor.

 

[topgazza]

Two good ideas for getting the stuff in... thanks guys. I suppose the question still is do I need to do it or is it better to just in case ?

 

[Armo74]

It is definitely a must.

 

[topgazza]

Thought it might be

Inhibitor or protector ?

 

[Armo74]

Inhibitor.

 

[topgazza]

Thanks again.

I keep thinking of questions..... too much coffee today Apologies...

I was going to put 1 litre in if that sounds OK.

 

[Armo74]

1 litre is sufficient for upto 11 rads.

 

[topgazza]

Thats great thanks. Water in system at the moment is fairly clear but with the radiator coming off a few times any inhibitor is going to be diluted to much of course.

My approach was to fit the radiator turn the valves back on until rad is half full, as best as I can judge, . Check for leaks and although it won't be fully pressurised I know, then top up with the gunk, open valves and bleed as normal.

 

[Whitespirit66]

http://www.screwfix.com/p/no-nonsense-1ltr-filling-kit/98940

 

[holty]

even better http://www.screwfix.com/p/no-nonsense-central-heating-treatments-promo-pack/82140

 

[topgazza]

Screw fix never cease to impress. Thanks guys.

I was going to use Sentinal, and probably will but good to see there are alternatives

 

[Whitespirit66]

Screw fix never cease to impress.

...............but only when they have what you want in stock.

Oh yes, and stop trying to sell me shoite that I don't want when visiting one of your branches.

My local Screwfix now has a seperate room behind a door for plumbers and electricians (Plumbfix/Electrifix), with it's own counter. Don't have to mix with those uncouth builder types any more.

 

[topgazza]

That's true... Never used to be a problem