Replace Water

[tezestwing]

do I need to replace the water in my central heating system before I treat it with inhibitor

[Togo]

You don't have to. But the best results would come from a drain down and flush before adding the inhibitor.

[Togo]

Hope this works teze.

[Togo]

.

[maggiebee]

Sorry to butt in on this post, but could someone please explain what an "inhibitor" is and what effect it has on central heating systems. Would like mine in tip top condition before winter.

[Togo]

Hopefully.

https://www.youtube.com/watch?v=BI3S8B7f_vY

[Togo]

http://www.diyfixit.co.uk/central-heating/heating-corrosion-and-inhibitors.html
This link explains it magiebee.

[maggiebee]

Thanks for the link Togo.

[tezestwing]

Thanks for Info Togo I am getting good clear water samples but the nail trick is going rusty,I think due to the fact that I have to drain in 2 awkward places I will turn off lock shield and TRV then try, (syphon) to just drain approx 1 ltr from a radiator,then refill same with the inhibitor through hopefully 5mm ID (modified) same tube, then re bleed ETC, thanks for responce anyway.

[Togo]

Pleasure teze. Was out for the afternoon and evening.