dsandfort
Premium Member
Here is my air control adjustment for the Durso that I mentioned earlier.
Sand down a plug to bottom out and turn in the top of the standpipe. Belt sander works well.
Insert the plug and drill a couple of holes (more depending on size). I use 2, 3/8" holes through the standpipe and plug.
Then just turn the plug to open the holes or close them down as needed.
Sand down a plug to bottom out and turn in the top of the standpipe. Belt sander works well.

Insert the plug and drill a couple of holes (more depending on size). I use 2, 3/8" holes through the standpipe and plug.

Then just turn the plug to open the holes or close them down as needed.

