We don't as many model codes will ban their use
A Vented Running trap with two clean outs or a P trap.
The legality of a bell trap can vary depending on local building codes and regulations. It is important to check with your local authorities to ensure that the installation of a bell trap complies with all relevant laws and regulations in your area.
a "p" trap
In plumbing, a trap is a U-, S-, or J-shaped pipe located below or within a plumbing fixture.
An S trap is not allowed in a plumbing system. Only a P-Trap
Turn on the the water to the fixture. And let in run.
use a soda bottle, cut the top of, stick it in the other way and your done!!!!!!!!
Yes. A bottle trap is still an adequate trap and functions no differently than a standard trap. These are generally used in custom homes with exposed piping under lavatories. If it can't be seen though, the added cost of a bottle trap is usually unnecessary.
I'm assuming you are talking about a p-trap. A p-trap is a fitting that holds water to block sewer gasses from entering the building through the fixture. Every fixture with a drain has to have one in the waste. A toilet has what you would call an "s-trap" built into it. It serves the same purpose as a p-trap.
One trap for each fixture and one main trap prior to leaving the structure
A P trap goes thru the wall, an S trap goes thru the floor.
building codes in the jurisdiction may require you to use a certain type of trap in certain plumbing designs.A bell trap is used in floor drains (although this particular trap is sometimes erroneously installed in a drainage system).Answers.comAnswers.comAnswers.com. So is a drum trap. S traps are much more common.A p trap is used for sinks