Yes it is for a saltwater squarium. I suspect water quality has fallen off a bit, but can't really tell for various reasons that would take too long to explain and probably are not relevant. Suffice it to say that I have no means by which to test other than taste, smell and diatom blooms.
The...
RO system (with sediment and carbon prefilters) is rated for 24 GPD and actually operared at that rate for a half a year or so, with a waste rate around 70-80%, but recently started producing 2-3 times as much at about half the waste rate. Pre-filters changed. Filters and membranes are...
