The evaporation of water seals in floor drain traps is prevented by the use of trap primers in plumbing systems. Sewage gas cannot leak back into the rooms or buildings where the traps are installed if the water seal is not maintained.

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Does a floor drain need a trap primer?

This section covers everything in general. A trap seal primer must be used to protect floor drain or similar traps that are directly connected to the drainage system and are only occasionally used, unless the Authority Having Jurisdiction determines that this is not necessary for safety or sanitation. Maintenance personnel must have easy access to trap seal primers.

Do you need a trap seal primer?

Mechanical and service rooms, where floor drains are frequently used, require trap seal primers. It only takes a few minutes for water in drain traps on floor levels to evaporate, allowing sewer gas to enter the building.

Where are trap primers installed?

Install the trap primer valve at least twelve (12) inches (305 mm) above the floor drain grid or the flood rim of the equipment the trap is intended to serve in a vertical position.

Do all floor drains have traps?

A clogged floor drain is often a sign of a missing cleanout plug, which can allow hazardous sewer gas into the home. Continue reading to find out more about why and how this is so. There is a trap in every piece of plumbing equipment. It is the goal of a trap to keep the smell of sewer gas from re-entering the house.

What is a trap seal primer valve?

In order to prevent sewer gases from entering a building, a trap seal primer is a flow control valve that provides water to the P-trap in order to keep the water seal intact. The Trap-Defender® Pressure Drop-Activated Trap Primer and Electronic Trap Primers are two of the trap primer valves in our Fluid Controls® product line.

Do basement floor drains have traps?

Sanitary fixtures include the floor drain, which is located in the basement. That means it functions in the same way as a toilet, sink, or shower does. It also has a water-filled trap to keep out any bad odors that might try to sneak into your basement.