The council have reduced my water pressure after the recent freeze (and subsequent burst pipes), so I'm biting the bullet & replacing my merlin with a pumped RO. The Merlin is now surplus to requirements and taking up valuable space in my shed, so its time to sell...
This is the one i've got with the extra 10" pre-filter:
http://www.surecleansystems.com/proddetail.asp?prod=56The pre-filters (10" and 17") were both replaced 6 weeks ago, the membranes are 9 months old and get very little use. The light grey housing is cracked in one place (the courier who delivered it first day was a bit rough), but the damage is only cosmetic, it still works fine.
Merlin's are only good if you have decent water pressure,.. my input TDS is 320 at the moment, and with pressure hovering around 25-30psi the output TDS is 54,... when my pressure was 40-45psi the output used to be below 20.
Waste is also an issue,.. if you're on a meter then a Merlin is probably not for you!
First person to offer £120 + postage gets it.