Washing Machine Drain Requirements (All you need to know) – Diary of Spaces
Northern Virginia Plumbing Services, LLC - The indirect drain the a Washing Machine drains into is called a Stand pipe. Standpipes shall be individually trapped. Standpipes shall extend a minimum of 18
Stand (Pipe) Corrected — Wenatchee Home Inspection
What Is A P-Trap? (Sizes, Uses, Diagrams For Plumbing)
Appliance411 FAQ: Washing Machine Won't Stay Full of Water
Washer below main drain? - DoItYourself.com Community Forums
Install a washing machine
Clarification re: UPC 804.1 - Washing Machine Rough-in requirements | Terry Love Plumbing Advice & Remodel DIY & Professional Forum
13-25 Standpipe to laundry tub – Ontario Plumbing Inspectors Association Inc.