How does a bell trap drain work?

How does a bell trap drain work?

Essentially, the bell trap drain has a bell-shaped reservoir surrounding the vertical drainage pipe, with a trap seal that closes over the entire unit. The water that drains through the top of the bell trap drain fills the reservoir, with excess water spilling down the pipe.

What is a bell trap floor drain?

The Oatey® Bell Trap Drain is designed for use in garage, patio or other outdoor use. The water drains into a well in the drain unit that serves as a trap to contain sewer gas. The strainer snaps onto the drain body.

Why are Bell traps prohibited?

The reason that they’re illegal is that the shallow weir dries up quickly (in as little as a few days) and the trap fails when that happens.

What does a bell trap look like?

Bell Traps. A bell trap utilizes a basin with a bell-shaped component that fits over the vertical drain pipe. Combined, these components are designed to maintain a water “plug” that prevents gases from passing around the trap.

What is a plumbing s trap?

The mechanical purpose of the trap is to hold water to prevent sewer gases containing viruses and bacteria from entering the home through the drain. With an “S” trap drain, the trap is easily siphoned dry with each use and the water seal no longer exists. A properly installed “P” trap will always maintain a water seal.

What is better P-trap or S-trap?

P-traps are generally considered by most to be more effective and consistent in maintaining water trap compared to S-traps. Their design makes them less vulnerable to drying out and losing seal: a properly installed P-trap will never lose its water seal.

Does a floor drain need a trap?

All plumbing fixtures, including floor drains, are required to have traps. A trap looks like a “U” shape pipe. If you look below your kitchen or bathroom sink, this will give you an idea of what a trap looks like. A trap is simply a fitting that provides a liquid seal to stop the emission of sewer gases.

What is a plumbing bell?

Bell end pipe is exactly the same as standard plain-end PVC pipe except for one difference. One end of the pipe is “belled” out to become larger than the rest of the pipe. This flared out end is designed to fit directly onto the next length of pipe you are attaching.