In many jurisdictions trap seals are allowed as substitutes in retrofit situations where trap primers have failed.
Floor drain trap primer code.
Basic principles founding of principles.
Uniform state plumbing code.
Use o a trap primer to keep a water charge in the plumbing trap.
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Applicable and the floor drain size.
Self sealing traps for floor drains.
Building codes are quickly changing across north america to allow trap seal use in lieu of trap primers.
Self sealing plumbing traps interceptors containing check valves are available and are suited for floor drains.
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.
Open pdf file 5 59 mb for 248 cmr 10 00.
In this case a metered amount of water from the trap primer is evenly distributed to more than one floor drain trap by means of a distribution unit or an electronic primer manifold.
When a number of pressure drop activated trap seal primers are located close to one another they can be primed via a multiple trap primer see figure 1007 1d.
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The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.
Plumbing codes require that trap primers be provided for emergency floor drains and other traps subject to evaporation.
Carson dunlop associates sketch at above left shows how a trap primer system can be installed from a laundry tub.
Trap primers must conform to asse 1018 or asse 1044 standards asse stands for the american society of sanitary engineering.
Installation instructions shall not state or imply that the device may be used in lieu of a trap primer.
Uniform state plumbing code pdf 5 59 mb feedback.
Trap seal primers shall be accessible for maintenance.
248 cmr 10 00 is founded upon basic principles which hold that public.
Barrier type floor drain trap seal protection devices.
The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
Opening and closing floors or walls to replace trap primers can many times cost upwards of 1 000 each so a trap seal that.
Download the pdf to review an unofficial copy of the massachusetts uniform plumbing code more information additional resources for review 248 cmr 10 00.
