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.
Since the 1930s, storm drains and sanitary drains have been installed separately to prevent cross contamination. In a residence, the home's drain system is connected to the city sewer by an underground pipe called a lateral line, usually 4 to 6 inches in diameter, installed at a slope to use gravity for water flow.