Do Floor Sinks Need Trap Primers

Each trap except for traps within an interceptor or similar device shall be self cleaning.

Do floor sinks need trap primers.

Trap primers main disadvantage is maintenance. The item in the picture to the right is referred to as a floor sink. 1 2 chrome plated under lav trap primer assembly. 1 2 fip lead free brass trap primer.

Floor sink as a waste receptor. Floor drains or similar traps directly connected to the drainage system and subject to infrequent use shall be protected with a trap primer except where not deemed necessary for safety or sanitation by the authority having jurisdiction. I have a situation where the sink will get discharge from a radiant boiler in the. Do your inspectors require trap primers on floor sinks.

Traps for bathtubs showers lavatories sinks laundry tubs floor drains urinals drinking fountains dental units and similar fixtures shall be of standard design weight and shall be of abs cast brass cast iron lead pp pvc or other approved material. Other types divert gray water to the trap from nearby sink drains. 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. Cleaning or replacing them can be an expensive proposition especially when they require floor and wall demolition repair for access.

A trap primer or trap seal primer is a plumbing device or valve that adds water to traps the water seals in traps are needed to prevent sewer gases from entering buildings but because this water is exposed to the air it is subject to evaporation over time in infrequently used floor drains leading to the release of sewer gas into the environment. The trap primer mitigates this problem by. Mini prime electronic trap primer 1 2 inlet use with distribution units sold separately part.