How to Vent a Toilet Sink and Shower?

How to Vent a Toilet Sink and Shower?

Venting is necessary for bathroom plumbing systems to prevent blockage. All pipes in your home, particularly for toilets, sinks, and showers, require proper venting. It protects the trap on the drain pipe. In addition, it helps you secure your wallet, fittings, time, and even the pipe itself.

If you think your bathroom plumbing system is not set up yet or installed incorrectly, you need to know how to vent a toilet sink and shower yourself. There are various methods for venting. While some are simple, others are complex and require the attention of professional plumbers in Sacramento.

Let us take a look

  • To vent your bathroom sinks and showers, ensure your entire bathroom pipes are slanted downwards and tied into one stack. Since the water pipe should meet the stack at a higher point while remaining on the same line, extend them upwards. It is crucial to remember that your vent should never connect to your stack below the connection drain.
  • Another method is using separate vents. It works if your shower or sink is installed far apart. All plumbing fixtures unlinked to the vanity vent should have their vent. If the fixture has its vent line, you should separate the roof exit. Alternatively, the vent pipe can exit the bathroom through an exterior wall through a hole covered by a vent plate.

Things To Consider Before Plumbing A Toilet

Make sure you do it right to prevent drain clogging, or you would need to contact a professional company that does drain cleaning in Sacramento. Check out the following main parts of planning toilet plumbing.

Toilet’s Drain Size

The minimum drain size for a toilet is 3 inches, regardless of your plumbing code. 3 DFUs are assigned to water closet flushing of 1.6 gallons (or less) (drainage fixture units).

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Toilet’s Vent Size

Local plumbing codes decide the size of a vent pipe. If the plumbing code is IPC, your toilet’s vent is 1.5.

Toilet’s Trap Arm Length

If you are in the IPC, the trap arm of the toilet has no length restrictions. The toilet’s trap to vent distance is limited to 6 feet in the UPC.

Along with toilet plumbing, you may encounter additional problems such as water heater repair in Sacramento. Experts ensure you receive the best services possible.


Unfortunately, toilet venting is a bit confusing for beginners. It would be best to have professional assistance for venting a toilet sink or shower. Ensure that you have licensed plumbers because they know the drainage system. They can prevent any damage to the plumbing system of your house. Contact the best plumbing company in Sacramento for top-notch services.