I manufacture a product called Ionic Silver. A benefit of this is a large water distiller. No dirty marks on film for me. :)
You wouldn't believe the crud that collects from distilling tap water. Brown and smells awfull. And I live in Cumbria with one of the cleanest supplies in the UK.
When I originally posted this question, it was due to severe water restrictions being in place in South Australia; rainfall is not as copious as in other parts of the world - we are known as "The driest state, in the driest continent in the world." for good reason.
Harm to the actual environment is also of concern, but it was my intention to discover the best way to use the *least* amount of water, that would achieve safe, archival results without draining our precious, natural resource that is more often than not, in short supply.
Long, hot, dry summers with very little rain the following (or preceding) winter, doesn't allow for gallons of water to be washed down the drain, when it's in short supply. Parklands (usually green in winter and only a little browning in summer) are left to wither as the restrictive time to water is only a couple of hours in the am and pm - with large fines if you attempt to do so out of the allotted timeframe.
So if I can still achieve archival results, without using *any* more water than is absolutely necessary, not only is Adelaide thankful for my prudence with water use, but I'll also be saving $$$ on my water bill and ensuring water is still available for use during the next drought that comes along. :)
Water can be a big deal here where I live. In a dry year using more than necessary is both unconscionable and expensive. I have had a $200 water bill more than once, and that's being careful. I'd rather spend money on cameras and film.
water is not a finite resource. it is recycledagainand again, but i agree, wasting it is insensible. washing film and paper according to the ilford procedure is a much better way to go.
i've got 32 more days before i can return to florida and start building the next darkroom. This will be a closet design,but i'll have hot and cold running water.
In FL they have only hot and warm running water! :D