Why does plumbing need to be vented?
Plumbing systems need to be vented to prevent water syphoning out of the drain traps in your home. This system stops sewer gases from the drainage pipes from seeping back up into the home through the bath, sink, shower, and toilet etc.
Why are the plumbing vents needed?
A plumbing vent is an essential component of your home plumbing system. The vents provide an avenue for sewer gasses to escape from the pipes underground and within your home to the outside.
The plumbing vent:
- allows the drain to flow efficiently helping to maintain the proper air pressure around the wastewater system.
- prevents drains gurgling
- prevents water syphoning out of the traps which can allow nasty sewer smells back up the drain.
- safely removes bad sewer gasses from the home
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What is a plumbing or drain trap?
The trap is the curved section of drain pipe located just below an inside drain. If you look under your kitchen sink or vanity you'll usually be able to see the P or U trap. The bend in the pipe behind the toilet is also a trap.
The trap 'traps' a small amount of water which creates a seal blocking the smell of the drains coming out of the pipe, which as you can imagine is not an aroma you'd want in your home. Most homes will have water in the trap all the time but if the building is vacant for extended periods the trap may dry out or there is an issue with the plumbing vent which could syphon water from the trap
Having problems with smelly drains? Contact our Sydney plumbers today on 9191 7374 or complete our plumber booking request form.
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