As noted above, you need some photoflo. I also use some burning alcohol to mix into the rinse bath. The other thing you need is some demineralised water - the kind you put into the steam iron ( but without any flavours...).
Then, there's that little secret: Grolsch beer in 450cc bottles.
https://www.google.com/search?q=gro...hXEWBoKHS8SDDwQ_AUIBygC#imgrc=t8RpyYEiFlNIfM:
So,
Look around if you can buy this beer in the green bottles with a swing cap. You need to buy 8 bottles.
Drink the beer
😀
Clean the bottles.
Dilute your gallon of D76
Fill up the bottles to the brim and close them tightly ( control before diluting how much liquid you will actually need).
Put away for a couple of days at least ( D76 can get very active for some time after made. Then it stays stable for a few months if closed tightly) then you can use it.
I develop D76 1+1 - you have already guessed that my normal tank has 900cc capacity. If your tank is bigger, like 1 liter, you can dilute slightly more and adjust the time. Be careful not overextending the number of films you develop, as this can exhaust the developer. If you need to fill a bigger yet tank, look for bigger beer bottles
😀
I do not use stop bath nor water rinse - just make fresh fixer and go from developer to fixer directly.
Then, after the wash, I add a few drops of photoflo and about 5% of volume of alcohol to the final rinse water. This dilutes all impurities and avoids streaking. When you hang the strips, pour the final rinse solution over the negatives, and then grab them at the bottom and pull away from vertical for a minute to let the drops slide away along the edge.
The demineralised water is recommended for: diluting the developer when you make it, diluting further before development and above all for the final rinse. The fixer and the wash water can be from the tap.
Try to keep all the solutions within 2 deg C from each other. It is useful to put all the jugs into a water bath with controlled temperature while you load the films, this way everything should stabilise around the same value.