Originally Posted by richappy
If you have a Dwyer model 460, I added one extra ball to the columm and for a "normal " dryer the two balls go just past the top.
It is rather interesting that the balls will jump around if you have air turbulence.
I used my Dwyer wind meter (no model # noted, purchased in the mid 70's, meter reads from 2 to 63 mph) which showed a result of 16-18 mph of outlet air speed. Still have approx 1 oz. moisture and some lint collected in the outlet hose after each load dried. In addition, I've noticed that the sheet rock around the wall connection for the outlet hose is wet also. Any ideas what a normal reading for outlet air speed should be and what to check next?
Update: Initially I didn't do the basic crawl up on the roof and check the roof jack vent outlet, but did so today and found it was plugged. Removed lint, cleaned entire outlet pipe from top to bottom (again) and it seems to be working fine. I attached a few ribbon streamers to the outlet screen so I can monitor the air flow output from the ground. Walking on a 6/12 pitch comp shingle roof in the wet winter months can be hazardous to one's health. When the streamers quit flying around, it's time to get the ladder out and clean the roof jack outlet screen again. Thanks for the tips, looks like problem solved.