HI I ORDERED a distiller off ebay and it said it was a john ellis machine but its actually the water wizard 710. i paid $200 for it. Its all stainless steel with the double heating module, a coil in the inside of the heating thing and a metal strainer of some sort. The boiler also has the zig zag design that the water goes through the pipes. Is this the kind of distiller you have? If so id like to know if i should cycle the water more than one time. There is also very mild build up because it is a used model. Do you know of how to remove the mild build up?