RIVALRY: Pittsburgh vs. Cleveland? Clean water is the business, but this could get dirty 9/19. #neorsdTOUR

We're taking the Cleveland/Pittsburgh rivalry off the field and into the water.

The Sewer District's Open House is Saturday, September 19, the same day Pittsburgh's Allegheny County Sanitary Authority ALCOSAN hosts their annual event. The two agencies will go head-to-head in a battle of attendance and social media.

RSVP: Join us at our September 19 Open House, and register early for a chance to win a prize pack!

Both @neorsd and @alcosanWWTP hope to draw well over a thousand guests each, but bragging rights will go to the winner with

• Highest overall attendance
• Greatest increase over 2014's event attendance
• Most event mentions on social media September 19

"Treating wastewater is our business," said Jeannie Chapman, @neorsd Manager of Community & Media Relations, "but there's sure to be a little trash talking come Saturday."

We encourage our social media followers on Twitter, Instagram, and Facebook to mention our accounts or #neorsdTOUR to support your Cleveland wastewater treatment authority. And if you throw in any Pittsburgh jokes, be creative, at least try to keep them like our treated water: Clean.