Actually, there is another thread where RO
units are discussed... you should check it out. I think that mine might actually be defective (another person is having the problem too). Mine was supposed to pump out 100 GPD, but that has not been the case.
Can't remember what mine was, but I think around $160 on ebay.
So many people have had problems with algae and cyano
on this site after using tap water, that I figured it was worth chewing off my fingers and being patient for my silly RO
unit to finally fill the tank.
Someone may want to chime in, but I'm not sure your local water store could filter "too much."
"Filling life one slow gallon at a time..."