well you will need an RO & DI vessel.personally go for a Merlin because as you grow and need more water the Merlin will cope - also with a boosterpump you can fill at 100+ ltr p/h so your van/tank would be full in just a couple of hoursDarran
getting a reading of 180 tdsneed to buy a system to produce pure waterlooking at around 250l to 300l daywhat set up should i go for