Hi all,right i`m a bit confused ???i`m about to venture into wfp and have wonderd what is the best way of producing pure water i know you either need an ro unit or just plain and simple di resin,the ro unit ive been tempted by is the merlin because of how much water it produces and how cheap they are to run,but are more expensive to buy,but with the merlin i know you dont get a di resin polisher in it,do you need to add one to the unit or do you need to produce and store the water first the run it through di resin after,if so how do you run the water from stored tank then through the di resin then into another tank
,please help its doin my head in.