Richard
I am very glad to hear you say that. Once I tested someones water, and the water they had going through a carbon filter was in was shape than the unfiltered. I explained that if they don’t maintain their filters properly, its worse than having no filter what so ever. In the lab, we use a millipore system, which is a .45 micron filter with UV lamp to eliminate bacterial elements, but then again, we are producing substrates, so such practices are necessary.
