[Darren70]

Can anyone help please,i am putting a 650 van system together and not sure what size ro/di unit too use . I live in a hard water area. Also has anyone used a variflo+flow controler and battery charger. Or is it best to just use varistream 2 waterflow regulator with a 100 psi shurflo pump.  THANKS .                                             

[windowwashers]

Can anyone help please,i am putting a 650 van system together and not sure what size ro/di unit too use . I live in a hard water area. Also has anyone used a variflo+flow controler and battery charger. Or is it best to just use varistream 2 waterflow regulator with a 100 psi shurflo pump.  THANKS .                                             

I have 650l tank in hard water, are you having a van mount or static ?
I have van and have a 4040 RO in it.

I am now fitting a second di vessal as hate wasting resin at 001 so by having two I can save alot more 
Ian

[SherwoodCleaningSe]

If your knocking up 650Lts of water a day you need a minimum of a merlin RO but a 4040 would be better and well worth the extra outlay.  DI go for say 1 or 2 11L vessel that you can just refill.  I have varistream running flojets and can tell you they work well, don't know about the other make.

Simon.

[Darren70]

Thanks for the quick replys,not sure what is best static or van mount, leaning towards a static then pump to van. weight?.900kg Dispatch. Will not fill too max. I am doing it myself two reasons if it goes wrong i can fix it. Also money although i dont belive in false economy. Is the ro man the best way to buy. Trying to get it right from the start. THANKS.

[Captain Scarlet]

A 650ltr tank weighs over 700kg, so you are pushing it with that payload. I have a 900kg payload Expert and Ive got a 500ltr tank. Luke