i have one from them as well it is vary easy to hook up also you can buy extra filters and carbon blocks and the eleiments and they willnot charge extra shipping i bought the "II" it had the 2 dump switches to clean out the filter and to prime the ro/di. modal and added a pressure meter for 10.00 it wan not bad, it works great. iit is a good idea to let it run for 3 hours i think it said??..had it for 2 months now have it going right in to a plastic contanor makes it really easy.. well as for shuting off automaticly..you have to hook up a float valve which i do not have..and left it on all night...and found out the hard way that it did not
.. had a new tank in the lawndry room...