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Welcome to PDI Online
The Plumbing and Drainage Institute is the premier source of
information for plumbing and drainage products such as:
floor drains, roof drains, sanitary floor drains, cleanouts,
water hammer arresters, backwater valves, grease
interceptors, fixture supports, and other drainage
specialties with specific expertise in Hydro-Mechanical
Grease Interceptors and Water Hammer Arresters.
Our Standards, Publications and Training Seminars are a
valuable resource for plumbing and drainage professionals,
architects, contractors, and public officials.
See
our Webinar's...
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Of Special Interest...
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All our published material is available as a free
download from
this website.
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