How do I top up my Worcester 24i RSF with an anti freeze

[scotman03]

I have a Worcester 24i Combi Boiler fitted in my caravan. Last November i drained some of the sealed fluid away by opening up a drain valve that I thought was part of the normal domestic water flow.
I now realise after checking recently that this was a mistake.
I probably have lost a fair bit of fluid at the time before i realised my mistake.
I know how to top up the system using the loop but wondered how I would / should top up the anti freeze back to a normal level ?

 

[breezer]

you woulld be better off draining the whole system untill the "new season starts"

 

[COG]

No easy way without an injector etc, lifting off a rad and trapping it full of anti freeze then reconnecting it and its valve back onto the empty system, if you undo a pipe connection and poor it in that way you will get very little owing to the small volume of pipe work on a caravan. Remember when draining down the hot water side to blow out any water that may be left in the boiler heat exchanger, if that freezes ££££,.