Response to Nitrogen burst agitation; Info and advice.

Wayne, Making a plenum to distribute the nitro isn't all that hard. What you need to do is to make it out of fine hard tubing that you can make pin holes into. A weighted basket will help to keep it to the bottom of the tank and distributed evenly. Keep the bursts intermittent similiar to the regular agitation you would do by hand. You will have to experiment to see what is good for the system. A good way to do this is to shoot maybe 20 sheets of a grey solid background (copy stand works great) and process several at a time. If you are doing deep tank, put a few at the bottom near the plenum and a few on the top to test the turbulance top to bottom. Also, shoot a grey scale and either read the densities top to bottom or have a pro lab give you read outs. My burst was a 5 sec burst/ 20 sec. rest. At least this is a time you can start with.

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