Do floor drains need trap primers?
All plumbing fixtures, including floor drains, are required to have traps. For a water-supply-fed type trap primer, this happens automatically, based upon a water pressure drop when there is flow within the potable water piping system, such as using a sink faucet, flushing a toilet, etc.
What is a trap primer for floor drain?
Trap primers are used in plumbing systems to prevent floor drain traps from losing their water seal by evaporation. Maintaining the water seal will prevent the backflow of sewer gas into the buildings or rooms where the traps are installed.
What does a trap guard do?
The guard uses no potable water to refill lost trap seals and is simply press-fit into any tailpiece or drainpipe in its closed position. Its flex material will open when water discharges and then immediately closes to prevent both water-seal evaporation and any possible sewer gas emissions.
Do all floor drains have traps?
A missing cleanout plug can allow hazardous sewer gas into the home, and often indicates a clogged floor drain. To learn why and how, read on. Every plumbing fixture has a trap. The purpose of a trap is to prevent foul-smelling sewer gas from coming back into the house.
Does a mop sink need a trap primer?
1007.1 General. Floor drain or similar traps directly connected to the drainage system and subject to infrequent use shall be protected with a trap seal primer, except where not deemed necessary for safety or sanitation by the Authority Having Jurisdiction.
What are trap seals?
The trap seal is a device with a one-way valve that allows water to flow down the drain but forms a seal that stops air from escaping up from the drain. A trap seal is much easier to install and maintain, and there is no worry about fixture use, fixture type, or water pressure.
How many traps can a trap primer serve?
Singular electronic trap primers can be used to prime 1, or up to, 4 floor drain traps with optional distribution unit. Electronic Trap Primers deliver a timed discharge of water to the floor drain P-traps to ensure the traps maintain a water seal.
Where do you put trap primer?
The trap primer valve should be installed vertically at least twelve (12) inches [305mm] above the grid of a floor drain, or the flood rim of the equipment which the trap is to serve.
How much water does a trap primer use?
4-8 ounces
A water-supplied trap primer typically uses 4-8 ounces of water at a time. Some models are adjustable. After adding evaporation and multiplying the number of drains in a commercial building, the water use can quickly turn from ounces to many gallons per hour.
What is the difference between floor drain and floor trap?
The floor drain has an area which bypasses the trap, which will allow a tool to be inserted into the drain.