Author: techntrek
Subject: Air conditioning cause septic odors
Posted: 03 Sep 2016 at 9:28pm
Black tank sensors are useless. Gray, sometimes ok. Fresh water, usually ok. Battery indicator doesn't provide much useful info (voltmeter is much better).
Subject: Air conditioning cause septic odors
Posted: 03 Sep 2016 at 9:28pm
Black tank sensors are useless. Gray, sometimes ok. Fresh water, usually ok. Battery indicator doesn't provide much useful info (voltmeter is much better).
Problem description: negative cabin air pressure causing air flow through the toilet via the black tank vent. Theoretically cabin pressure should be neutral or close to neutral.
Possible root cause: seal failure in the A/C after the intake allowing pressurized air to escape instead of returning to the cabin. Normally the plastic case inside the A/C is screwed and clipped shut but the cover may be loose.