Most vent clogs are "saddle clogs." They sit at the bottom of the vent stack, right where it turns horizontal to join the main sewer line. Water never washes that area. Waste solids and grease sneak up over time, creating a hard, calcified shelf.
You can snake the roof vent all day, but if you just punch a hole through the blockage, you’ll only clear a pencil-sized channel. The pipe will work for a week, then fail again. The professional solution is two-fold. drain vent clogged
You’ve seen the warning signs. The gurgle of the bathroom sink when you flush the toilet. The kitchen drain that moves slower than a DMV line on a Monday. The sewer gas smell that wafts from the laundry room for no reason at all. Most vent clogs are "saddle clogs
Your plumbing isn't broken. It’s just holding its breath. Give it air, and watch the water fly. You can snake the roof vent all day,
When the vent is clogged, water flows like a straw with your finger on the top. It glugs. It hesitates. It stops. So, what clogs a pipe that never actually touches water? A surprising amount of organic warfare.