â¦about tires, XL really means extra load. These tires can use higher air pressure to support more weight than a standard tire of the same size. If you want to see whether your current tires are standard or extra load, you can check the service description on the tire's sidewall. An extra load tire willâ¦.
Plumbing vents which have been accidentally closed off or blocked: some plumbing vents include a. screen which can slide down, closing off the vent and causing sewer gas backups in the building. We've. also found plumbing bents blocked by wasp nests, birds, and once even a frog.
1 Fill a bucket with one or more gallons of water and quickly pour into the bowl. 2  If the bowl flushes normally then there is no blockage down the trap, sewer pipe or vent pipe that is effecting normal flushing. 3  If it swirls but does not flush or has a weakflush then the clog is in the trap, drain pipe or vent pipe.