0
Because a toilet disposes of a relatively large volume of "solid" mass, it is important that the drain pipe leading from the toilet be equalized at current atmospheric pressure. This is accomplished using a vent pipe that is routed upward, typically ending 10-12" above the surface of the dwelling roof. "Solid" waste moves best in two modes - Traveling vertically, and traveling at a slope of 1-2" vertically per horizontal foot. Any slope greater than this will cause the "suspension media" (water) to travel around the "solid" waste.
Typically, in an American dwelling, there is a 1 1/2" to 2 1/2" vent pipe leading from every kitchen and bathroom in the dwelling. the pipe leads straight vertically to the roof and is protected on the roof with a lead "boot" that can be obtained from roofing suppliers.
In bathrooms, the vent pipe typically leads vertical from the toilet, because it disposes of the greatest ammount of solid waste. All other drains in the bathroom couple to the toilet vent u8sing "T" fittings that are attached at a level higher than any drain water could achieve. In the kitchen, where a nice window often frames the view of the kitchen sink, the pipe is sometimes offset horizontally, or joined by a "t" fitting to other kitchen drains (typically the dish washer).
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What make a ktchen sink make a bubbling noise everytime you flush the bathroom toilet?
Sink is not vented properly and the water from the p-trap under the sink COULD be sucked out by the hydrostatic pressure from the toilet flushing.
What is the best way to move the toilet flange a couple of feet and is there an adapter to go from cast iron to PVC?
Cut the toilet line down at the first 90 from the flange, and relocate so that your toilet is still vented from it's orignal vent. If it is dry vented, you need to move the toilet and the vent. A no-hub band or fernco coupling is the preferred transistion from cast iron to PVC.Ans 2 -good advice. - BTW, - a Fernco is a heavy duty rubber coupling with a hose clamp each end. They come in many sizes.
What is wrong after installing a sink and toilet in a basement you can smell sewer?
Sounds like the trap in the sink is getting the water pulled out of it. It probably wasn't vented properly.
Where is air vented from a hydronic heating system?
what is air vented from a hydronic heating system
What side of the toilet drain should the vent be on up stream or down?
downstream of a closet bend within 8 ft for three inch pipe and 10 feet for 4 in pipe at least half the size of the drain... unless it is stack vented then it would be full size of the stack right
Do you need a separate vent for each toilet installed?
Every toilet should be wet vented with the sink in the bathroom.
Does the toilet vent have to be above the toilet?
Yes as ALL fixtures need to have the vent placed above the FLOOD LEVEL RIM
Does a toilet in the basement need its own vent or can it share the vent of the drain it is tied into?
Should be individually vented
Iwant to install toilet in your workshop do you have to vent the pipe?
A toilet has to be vented otherwise you are trying to force liquid against the air in the drain and it is pulling against a vacuum. It will never flush right.
Can a toilet drain be reduce to a tub drain?
Yes as long as the drain has a trap and is vented
When installing a sewage basin and pump it is understand that the basin itself needs to be vented What about the toilet shower and sink that it will service do they need to be vented as well?
Yes. Toilet, shower, sink, or any other fixture that you might have needs to have a vent. Why? --->>> Toilet, shower or sinks are all independent fixtures where they all individually need air in order to flow properly. Any of these fixtures will not take air from the same vent you have at the basin.
What is the minimum diameter of a toilet drain pipe?
Normally 3" BUT if your using a sewerage ejector you can go with a 2" grinder pump if properly vented
What make a ktchen sink make a bubbling noise everytime you flush the bathroom toilet?
Sink is not vented properly and the water from the p-trap under the sink COULD be sucked out by the hydrostatic pressure from the toilet flushing.
What is the best way to move the toilet flange a couple of feet and is there an adapter to go from cast iron to PVC?
Cut the toilet line down at the first 90 from the flange, and relocate so that your toilet is still vented from it's orignal vent. If it is dry vented, you need to move the toilet and the vent. A no-hub band or fernco coupling is the preferred transistion from cast iron to PVC.Ans 2 -good advice. - BTW, - a Fernco is a heavy duty rubber coupling with a hose clamp each end. They come in many sizes.
How come gas doesn't come back up in the toilet?
toilets have a built in water trap And they should be properly vented to prevent trap seal loss
What is wrong after installing a sink and toilet in a basement you can smell sewer?
Sounds like the trap in the sink is getting the water pulled out of it. It probably wasn't vented properly.
Do you connect a downstairs toilet to an existing stench pipe or go straight into the drain?
It depends on the configuration of the pipe. It must be a minimum of 3" pipe and the configuration of how it is hooked up must allow for the toilet to be vented and must not disrupt the venting of other fixtures. Call a plumber.
