Originally Posted By: five.five
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What is the problem if your kitchen sink is gurgling?
Trap lost it’s weir?
Vent line partially blocked?
Wrong slope on vent line?
Vent line capped ?
What could the cause be for your bathtub not draining?
Vent line full of water?
Wrong slope on vent?
* I assume it is the trap is blocked, but it could also be vent line full of water ?
I do not remember the fourth option.