PT-50 Supreme Liquid Deodorizer

The Strongest Super Concentrate for Extreme Odor Control

PT-50 SUPREME is a professional-grade liquid holding tank deodorizer engineered for portable sanitation operators who require maximum-strength performance in extreme weather, heavy traffic, and demanding service conditions. Designed for routes where standard treatments may fall short, PT-50 SUPREME delivers powerful, reliable odor control in a highly concentrated formula.

Powered by Walex WAVE2® Technology, PT-50 SUPREME provides advanced deodorizing performance that works effectively even in heat and overuse scenarios. Its concentrated design allows operators to customize dosing for each service condition while maintaining consistent, professional results.

How to Use

Use 1–2 oz. (30–60 mL) per 5 to 8 gallons of fresh water per toilet charge.
Always use at least 5 gallons of water in the holding tank.
Adjust dosage as needed based on traffic level, climate, and service interval.
For convenient dispensing, use with a 3/4″ drum spigot, 2″ drum spigot, or dispensing bottle.

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What Is PT-50 SUPREME Used For?

PT-50 SUPREME is a commercial liquid holding tank deodorizer used to control odors in portable toilets and restroom trailers. It is designed for portable sanitation operators servicing high-traffic units, long service intervals, and extreme climate environments where maximum-strength chemistry is required.

As a super-concentrated deodorizer, PT-50 SUPREME helps maintain clean, odor-free units and a professional appearance across demanding routes and service conditions.

How Does PT-50 SUPREME Work?

PT-50 SUPREME utilizes Walex’s proprietary WAVE2® Technology to deliver dependable odor control performance in portable restroom holding tanks. Once diluted and added to the tank, the fully water-soluble formula disperses evenly throughout the system.

The advanced formulation is engineered to suppress odor-causing bacteria and maintain a stable treatment environment, even under extreme heat and heavy-use conditions. Its non-staining DURABLUE color helps maintain a clean, professional tank appearance while allowing operators to visually confirm proper dosing.

Key Features & Benefits

  • Strongest Super Concentrate Available – Maximum-strength formula for demanding service environments.
  • Superior Odor Control – Reliable performance in heavy traffic and extreme conditions.
  • Excellent for Extreme Weather – Designed to perform in heat and challenging climates.
  • Customizable Dilution – Adjustable dosing for different route conditions.
  • Non-Staining DURABLUE Color – Professional blue appearance without staining tank components.
  • Available in All Fragrances – Flexible scent options for operator preference.
  • 100% Water-Soluble – Mixes completely for even tank distribution.
  • Formaldehyde-Free – Meets modern sanitation standards.
  • Multiple Size Options – Available in a range of container sizes for different operation scales.
  • Professional-Grade Performance – Engineered for commercial portable sanitation use.

Ideal For

  • Portable restroom operators servicing high-traffic routes
  • Construction and industrial job sites
  • Large outdoor events and festivals
  • Hot climate service regions
  • Long service intervals requiring maximum-strength deodorizing power
  • Operators needing concentrated, cost-efficient chemistry

Frequently Asked Questions

The most common reason your deodorizer isn’t performing as well is inadequate water, which leads to mounding. We recommend adding 5-8 gallons of water to ensure all waste and paper falls below the water line. Water is the vehicle that delivers the deodorizer to the waste.

Urine changes the pH of the contents of your holding tank, which causes the dye to fade from dark blue to green. Heavy usage and hot weather makes this problem worse. When your customers see the green color, they believe the deodorizer has worn off, even though that’s not necessarily true. Walex recently created a new dye called DuraBlue, which better withstands these shifts in pH. DuraBlue retains its deep blue color through day seven. Like other Walex dye, it won’t stain or cause problems at waste treatment plants. Durablue is available in all Walex packets and liquids.

It’s a matter of personal preference because there are pros and cons to each. Packets are easy to use because they’re mess-free and pre-portioned. Walex liquids are versatile because they’re available in more strengths and fragrances. Which product is more cost-effective also depends on usage. To learn more about which deodorizer best fits your needs, read our article about selecting a deodorizer.

Every time you empty the unit, a little bit of residual waste can remain on the tank walls. If you don’t scrub off this “sludge line,” over time, the waste will become caked to the tank walls and be very hard to remove. Walex makes a product called Commando that deep cleans these troublesome units. To use Commando, drop one packet in per 100 gallons of tank capacity and add enough water to fill the tank completely. The enzymes target and liquefy any solids so when you empty the tank 12 to 24 hours later, it’s good as new.

Walex offers a wide variety of fragrances, so it’s a matter of personal preference. We do recommend switching fragrances every few months because your brain can acclimate to smells. If you’re interested in trying different fragrances, call your account manager and ask for samples.

No, you can add the packet or liquid directly into the holding tank. We recommend adding deodorizer before water so everything is better mixed together.

Many drivers who use regular Porta-Pak add two packs if extra odor control is needed. However, we recommend switching to Porta-Pak MAX, which is a more powerful packet designed for extreme conditions. Porta-Pak MAX is a super-concentrated formula with 50% more color, 50% more odor control, and double the fragrance of original Porta-Pak.

Yes. Standards for accepted waste at treatment plants vary across the country, but we are not aware of any waste treatment plant that does not accept waste treated by Walex products. If you encounter any issues from waste treatment plants, please contact us.

Yes. To offer a premium restroom trailer rental, we recommend ingesting in P-Trapper Waterless Urinal Odor Control, Commando Holding Tank Cleaner, and Ovation Air Freshener, if you don’t already have these products. For a full list of products to keep your restroom trailer fresh and clean, read our blog.


Products Trusted by Industry Leaders

“From the very beginning, Walex has played a key role in helping us deliver on our mission to provide clean, dependable, and high-quality sanitation services across Southern California. Their innovative products and reliability have supported our teams in the field, allowing us to meet the high standards of service our customers count on. Whether it’s the consistency and effectiveness of their deodorizing products or their dependable staff, Walex has helped us do our job better—day in and day out.”

— Rudy Lopez, Chief Executive Officer, Southern California Industries

“Walex’s customer service is next level. Their products are always shipped in a timely manner, same day if not the next, and are on time. The staff has always made us feel we are family to them. Can’t say enough good things about Walex as a company!”

— Hunter Schenk, Tuff Jon

“The experience I’ve had as it relates to Walex has been nothing less than amazing. I am truly appreciative of everything you all do to ensure ROS stays ahead of the curve on providing top tier service.”

— Anthony Sims, United Rentals

“Walex is a very special company with an owner and team members who strive for the best products and services, showing they care, have integrity, and want to help raise the bar in our industry and help their customers. We feel like family.”

— Andy Gump Family & Team

“Working with Walex has been a real win for our business. They’re quick to respond to orders, always deliver on time, and help us keep things running smoothly—especially during our busiest seasons. Their communication is clear and consistent, so we’re never left guessing about where things stand. It’s great to have a supplier that understands the pace and demands of the porta john business. Walex has become a trusted partner.”

— Kellie Sicilian, Procurement Specialist, MPW Services

“We’ve used Walex for more than a decade and find it to be the most consistent and reliable vendor we’ve had. When you order from the outstanding sales group you know you’re getting industry best performance. Walex has been a true value to our business and customers.”

— Brian Knoper, Owner, Kerkstra Portable Restrooms

About PT-50 Supreme Liquid Deodorizer

Use 1 ounce of product per five gallons of fresh water

5 gal, 7 gal, 15 gal, 55 gal, 275 gal

Blue Volcano, Bubblegum, Cherry, Cinnamon, Citifresh, Dark Ice, Fantasy, Lemon Lime, Mango, Mulberry, Strawberry, Spearmint, Sunglow, Wild Flower, Power Punch