That seems pretty good. Is there anyway I can talk you into a higher product volume? Say a 75 gpd? I know that sounds like a lot, but it can and will really save you in a bind. Always get a unit that makes more than you think you'll need. IMHO, 35 gpd just isn't enough, especially if you have an emergency. There are lots of other reasons to get the 75 gpd units, which includes more cost efficiency, greater rejection rates, cheaper to buy membranes, etc.