Houses have several types of exhausts. There is the chimney furnace, a kitchen fan or a dryer vent. The plumbing vent stack also works as an exhaust but does not get too much attention unless the winter comes and it freezes shut. Trouble in this part can make the toilet flushing harder.
To avoid plumbing vent trouble in winter, here are some of the things you need to know:
The purpose of the vent stack is to allow unpleasant sewer gases to release through your roof. It is common to see the cast-iron pipe, but in newer homes, this can be made of PVC. Most homes have one stack, connecting drain lines to it. The drains in the tub, sinks, toilets and the likes have a trap blocks sewer gases from escaping from the drain. The use of a plumbing vent is to maintain the air pressure in the drain system as normal as possible so that the water will not draw off out of these traps.
Plumbing vent problems
One common problem is when plumbing smells like sewer. Snow can clog pipes which may lead to sewer gases inside your house. Extreme cold temperature can make the plumbing vent freeze. The water vapour in the vent can accumulate and thus freeze on the top of the stack which may close it off entirely if ignored. Snow buildup of freezing of the vent pipes will result in having an awful smell. Even if the vent does not freeze completely, this may cause toilets to have trouble flushing or it could also affect the other drains in the home.
A blocked or clogged plumbing vent is a challenge to repair. Trouble in the plumbing vent can be fixed by your local plumber.