Adrian Bacon
Subscriber
I would note that 1L packets are on the small side for practical replenishment -- though I suppose you could mix one for working solution and a second for replenisher (my working solution is 2L, however, because my sheet film tank takes about 1.6L for 4x5 film). Still, not a bad idea to sell both 1L and 5L size, so folks who use it slower don't have to be as concerned about the stock solution going off.
Yeah, for my uses, 1L is waay too small. I mix up 15L at a time. My working bottle is 2L. I go through 15L every couple months when things are slow and easily blast through that in a month when it's busy.