im surprised how many people shell out ££££ on a r.o system, when you can get a merlin for £300?
plus they only cost £20 every 3-4 months in filters?
anyway back to the topic. dont know why its taken so long to work out but, realised i could hook up my pump to the merlin where the water enters (clear tube) and just switch on, gets most of the water out, and if it does freeze wont damage it, i do wrap it in a space blanket for extra peace of mind.
this might work for other systems?