Hey guys I have a quick question. I just purchased a 4 stage SpectraPure 4 Stage RO/DI unit and it worked great the first time (also on a side note should there be a lot more waste water than good water?). Now there is still water coming out the "good water tube" however there is no pressure being read on the gauge. Does this mean my unit is broken and I can't use the water or does this just mean I need a new gauge. Thanks guys!