Black roof vent intentionally plugged
I recently picked up a used 2007 Nash TT and have noticed a strong black tank odor immediately after towing it. Today I removed the existing roof top vent to install a swivel vent and discovered the b...
Forum Discussion
Fortunately you found the problem quickly. If it continues check for a bad air admittance valve under the sink.
Try The Geo Method to clean your tank
Try The Geo Method to clean your tank
