Do you remember the air flow the unit was producing, and the pressure it produced in the RV, from the control display?
I watched a test done on our RV with a Sealtech machine. I didn't look at numbers, but I can say the pressure difference, inside to outside, wasn't noticeable. It was nice that there was so much air volume. No waiting for coach to pressurize.
I didn't expect the door tester to use a fan-bladed blower, thought it'd be squirrel cage like Sealtech.
How'd you adapt the tester to the RV doorway? The ones I looked up only had square frames that made square corners. The big version of Sealtech stays outside and pressurizes the RV through the door. Had a rounded frame at the top.