I saw on the darkroom forum.
Using tank water for his darkroom. Feedback what do you use?
I have 11000 liters here I use distilled to mix my stock solutions. I buy 5 and 10 liters from the automotive store or chemical supplier. Lasts a while because I only use a liter at a time. I have two filters in line, one a poly/paper filter, this is the prefilter. Then a big blue ceramic charcoal filter. Inside I have another cartridge filter, this is for drinking only. I did this because or council supply has a bit of lime in it. Dishwasher / white dots everywhere. I'd myself be more worried about the town supply. I do also think we use a lot of water and we have so little in Australia.