----- Original Message ----- From: "Dr E D F Williams" Subject: Re: Recommendations: Roll Film Washer
> The amount of solution remaining on the reel > and in the tank (not in the emulsion) is irrelevant because this is diluted > and removed as soon as the water is changed. Don, it's not irrelevent, since it is in the tank when the wash bath goes in, and immediately contaminates it. Therefore, it must be accounted for. This presumes a fill and dump wash method. If you are using a running water wash method, then you are correct. I don't advocate running water washing because it is wasteful of a resource. William Robb