[cottonbud10]

am i to understand that if i opt for a ro unit ,i can put the tap water straigt into a tank in the van,and it,s purified as i use it via the brush,unlike a di where it has to first be purified and then go into a holding tank and then from there to the vehicle....IT,S ALL DOING MY HEAD IN......thanks al

[crystal.clear]

if ur tap tds is high you will need to connect a ro to a tap then into ur tank. Then when your using it will then go through the di unit to polish it off

[mike richardson]

you can do either way,you can use an ro then di straight to your van, you can use a ro then di straight to a storage tank then pump it to your van when you need to, or you can just use a di either straight to your van or storage tank its up to you, BUT if your water has a high tds reading say 100+ you would be better off using a ro then di as just a di would use up resin really quick & cost you a fortune,