Engineered for Safe and Effective Liquid Waste Removal

West-Mark offers a full line of liquid waste trailers engineered for safe, compliant, and efficient waste evacuation. Whether you’re servicing municipalities, industrial sites, or military operations, our equipment is trusted in the field, including deployments with the U.S. Navy for evacuating oil and bilge waste from ship hulls.

Need a custom solution? Our team combines decades of experience in vacuum systems and trailer-mounted tank design to deliver tailored units that meet your specific operational demands. From spill response to routine waste management, West-Mark units are built for long-term performance, reliability, and safety in the most demanding environments.

Built for Compliance. Designed for Customization.

No two waste management operations are alike. Every West-Mark liquid waste trailer is engineered to meet your specifications—from tank capacity and stainless-steel materials to vacuum pump system layouts and DOT-compliant plumbing configurations.

Do you need high-capacity suction, hazardous waste transport capability, specialized suction ports, or compartmented tanks? Our in-house engineering team uses 3D modeling, FEA testing, and over 50 years of vacuum trailer experience to deliver reliable, field-ready solutions.

With West-Mark, you’re not just getting a tank, you’re investing in a fully integrated system built to perform, comply, and endure.

Trusted by Industry and Government Agencies

West-Mark liquid waste equipment is built for those who demand performance without compromise. Our liquid waste trailers are field-proven across a range of sectors—including municipal utilities, oil and gas, environmental services, and U.S. military operations.

With a focus on safety, uptime, and regulatory compliance, our vacuum trailers and liquid waste systems are trusted for applications ranging from ship bilge evacuation to remote spill containment. When failure isn’t an option, West-Mark delivers equipment that performs—job after job, year after year.

24/7 SUPPORT

All customers have access to their rep during business hours, or an emergency line at (800) 692-5844 any other time. We are here when you need us.

24-HOUR RESPONSE TIME

Emails, phone calls and texts will be returned within one business day.

FOR IMMEDIATE ASSISTANCE:
(800) 692-5844