Very wise - but even so, if someone were to do the same buying trashy prefilters their membrane life would still delept 75% faster than if you used decent ones... and that is changing them every month! most leave them much longer and wonder why they need to fork out for new membrane every year.
foxman even though i agree with what you are saying in a roundabout way, how do you know these filters are not the same as the ones you are buying at 4/5 times the cost ?
also where in the world did you get that it would deplept MEMBRANES 75% FASTER?
unless you make these or you know something that I dont, I think you plucked a number and thought that sounds good lets add that, sry dude I am not trying to knock you but please back this up and say I am writting rubbish, i honestly think you cant back this up in any way so therefor a totally worthless post, if i am wrong i will eat my words and add a post to say I was wrong on this one
Ian