The best RO system I have had is this:
http://www.pozzani.co.uk/water-filters-363/product_info.htmlThis firm is local to me and I have dealt with them for resin and RO parts for a few years.
I bought one of these from them because:
1. I knew the firm produced hi quality RO equipment.
2. They are 1/2 a mile away, so any problems sorted.
Mine developed a problem so I dropped it of with them at around 9:30 am and by 4:30 it was fixed and by 6:30pm was producing water again. They put a new pump on and a new pressure switch.....NO charge on garantee.
And at £400.95 inc VAT and Delivery a good piece of Kit.
David Salkeld