WWETT Show is part of the Informa Markets Division of Informa PLC
This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.
Website Sponsor
Show Info
The WWETT Show - Water & Wastewater Equipment, Treatment & Transport Show - is the world's largest annual trade show for wastewater and environmental service professionals. The event offers an unmatched educational program, a full slate of live demos, an array of networking opportunities, and an extensive expo floor where buyers and sellers come together to see and experience the latest product innovations and technology.
Show Dates & Times
WWETT 2026 will take place at the Indianapolis Convention Center from February 16th-19th, 2026. Please read below for a more detailed list of hours for the expo hall and conference sessions.
Tuesday, February 17
9:00am - 5:00pm
Wednesday, February 18
9:00am - 5:00pm
Thursday, February 19
9:00am - 1:00pm
Monday, February 16
9:00am - 5:30pm
Tuesday, February 17
10:30am - 5:00pm
Wednesday, February 18
8:00am - 3:30pm
Thursday, February 19
8:00am - 12:00pm
2025 Expo Hall Hours
2025 Conference Hours
Show History
Click below to learn more about the history of WWETT and our humble beginnings.
The history of the WWETT Show begins in 1979, when a tiny, trimmed-down newspaper was developed and mailed to around 12,000 septic “pumpers” throughout the Midwest. That little paper consisted of a handful of advertisers, a few classified ads, some makeshift editorial and a crudely-drawn comic of even cruder subject matter. That was the first edition of The Midwest Pumper.
We’ve come a long way since that first issue of The Midwest Pumper. By 1981 a conference had grown out of it – The Liquid Waste Hauler’s Equipment & Trade Show. It consisted of a few hundred attendees and couple dozen exhibitors. We even had some Canadian attendees, so the following year we chose to rename the expo the International Liquid Waste Hauler’s Equipment & Trade Show – to better reflect our “global” presence.
After a few years with that name a new publication was created - Cleaner - and so the expo name was changed again to better include the two main publications we produced and to better encapsulate the growing attendee and exhibitor base.
Fast-forward to 2014 and the Pumper & Cleaner Expo had grown into one of the largest trade shows in the United States – 64th largest to be precise. A tiny little paper for septic pumpers had expanded out into eight highly focused magazines for professionals across every facet of the water and wastewater professions.
Your success has fueled our success and those of us willing to change with the times are the future of this industry. So, after more than 30 years, it is time to make another name change. We’re not just a show for “pumpers and cleaners” – we’ve grown and evolved into so much more, and so have you.
The industry and profession has surpassed what many of us could have ever imagined way back in 1979, when Pumper was delivered to mailboxes across a few Midwestern states. In 2015, the Pumper & Cleaner Environmental Expo International was changed to the WWETT Show – the Water and Wastewater Equipment, Treatment & Transport Show.
Frequently Asked Questions (FAQs)
Please see below for Attendee and Exhibitor Frequently Asked Questions (FAQs)
Latest News
Copyright © 2025. All rights reserved. Informa Markets, a trading division of Informa PLC.