Can a Dishwasher Tailpiece Be Installed Horizontally?

Yes, you can install a dishwasher 'wye' on horizontal pipe, but that is not a dishwasher 'wye'. That is a dishwasher tailpiece that is made to attach to the basket strainer of the sink vertically.

Should a dishwasher drain line be looped?

“A high loop is required on the dishwasher drain in the installation instructions for all of your dishwashers. ... GE: “If an air gap is not required, the drain hose must have the high loop from the floor to prevent backflow of water into the dishwasher or water siphoning out during operation.”

How do you install a tailpiece?

FOR INSTALLATION:
  1. Turn off water at the tap.
  2. Remove old sink tailpiece.
  3. Measure distance X, as illustrated.
  4. Cut new tailpiece to length with hacksaw.
  5. Remove nuts A and C.
  6. Slip nut A over tailpiece and put its washer B on the tailpiece flange.
  7. Place nut C and washer onto the new tailpiece. Hand tighten nuts.
David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.