Sorting Out the Right Chemical Dispenser


The correct chemical dispenser can help ensure the proper mix is injected during the wash cycle. (Image licensed by Ingram Publishing)


A proper chemical mix can help extend linen life. (Image licensed by Ingram Publishing)

John Goetz |

Proper system lengthens linen life, cuts costs, expert says

CINCINNATI — From piles of dirty hotel sheets to stained restaurant table linens, commercial laundries face numerous challenges when it comes to maintaining results and keeping costs in line. 

According to TRSA, the association for the linen, uniform and facility services industry, the U.S. commercial textile services industry processes around 15 billion pounds of laundry annually, and about half belongs to hospitality businesses.

Cleaning textiles and removing tough stains requires the use of specialty chemicals. Depending on the type and size of the laundry, these chemicals can represent 17% to 48% of annual operating costs, according to a study done by Kline & Company Inc. Along with adequately training employees and properly maintaining equipment, controlling chemical delivery is a top priority. 

Without a proper system in place, it’s easy to dispense chemicals incorrectly. This can result in poor outcomes, higher costs and reduced productivity. To combat these challenges and meet guest expectations, laundries of all sizes must utilize advanced technology, like chemical dispensing systems. By ensuring repeatable chemical dosing and simplifying the washing process, dispensers can transform the way laundries care for and maintain quality linen.


To maintain a crisp, fresh look, commercial sites with on-premises laundries (OPL), such as hotels, often use bright, white linen. However, this linen is easily stained by makeup, coffee, dirt and more. When a first wash doesn’t fully remove a stain, facilities must rewash linen and use stronger, often more expensive, chemicals. This increases labor, water and utility costs, and chemical usage, while shortening the life of linen. All of this adds up to higher costs. 

For example, abnormal rewash rates (e.g., 3% for sheets) can significantly impact a laundry’s yearly chemical spend, which can already surpass $125,000, according to the study by Kline & Company.

Leaving manual chemical dosing up to employees opens the chute to potential safety hazards, improperly measured chemicals or poor cleaning results. Each of these items directly impacts the laundry’s bottom line and the environment. 

Laundry facilities typically employ a diverse workforce and can experience high turnover, which complicates training. For all of these reasons, straightforward, automated chemical dosing solutions are necessary.

Another challenge laundry facilities face is the overuse of water, energy and gas. Without a proper chemical dispensing system in place, the impact to these other cost drivers can be significant. Most facilities have the potential to conserve and recycle more resources but don’t have the proper equipment installed to help manage and reduce use.


The variety and volume of linen being washed, which is driven by the type of facility, will affect chemical dispenser selection. Multi-wash and tunnel systems are ideal for larger commercial industrial laundries or linen supply companies, whereas simpler systems work better for smaller businesses. 

For example, a small OPL at a bed-and-breakfast inn may be satisfied with a simple, push-button system that dispenses one detergent product to a single top-load, home-style washer. Medium to large OPLs at larger hotels and hospitals wash a variety of linens, including sheets, towels, patient gowns, dining linens and rags. Therefore, they require systems that can deliver up to eight different types of chemicals. In these environments, a peristaltic pump or roller pump is typically used for its ability to handle a variety of fluids, as well as affordability and flexibility. 

Although peristaltic pumps have many advantages, natural deterioration over time by continued chemical contact does wear pump tubes down. If not maintained properly, this can result in less chemical delivery, which can impact wash cycles. Since pump tubes can lose thickness and elasticity over time, maintenance personnel should replace them and recalibrate every three to six months to maintain optimal results.  

By contrast, industrial laundries or linen supply houses may process millions of pounds of laundry every year, requiring up to 100 chemical formulations. Thus, these sites need larger, central dosing systems that are built to cut costs, drive informed decision-making and ensure reliability. 

Laundry managers in this environment should look for numerous qualities in a chemical dispensing system, including:

  • Advanced, wireless reporting capabilities. Some dispensing systems offer remote access so that managers can make changes without being onsite. System software and mobile connectivity provides laundry and chemical personnel with a view into critical laundry key performance indicators, like water usage, production by formula and alarms that impact uptime. Such data allows facility managers to proactively take action on issues ranging from inadequate water pressure to staff training opportunities. The result is more efficient operations and reduced downtime.
  • Reliable, durable and accurate diaphragm pumps. High-quality pumps not only keep systems in working order for longer periods, but also provide accurate dosing and consistency over the life of the installation. They do not require the maintenance that traditional peristaltic pumps do.
  • Separate channel configurations. As the number of washers and production of linen increases, it’s important for a system to feature multiple channel configurations. This enables the system to efficiently dose all products without long queues and prevents costly delays that can arise if the system is undersized.
  • Small, compact design and wall-mount option. Even large or industrial-size laundries will benefit from a compact dispenser, since they reduce the overall footprint and make installation quick and simple. It’s easy to locate potential issues and conduct regular maintenance with a single cabinet design. 
  • Environmentally friendly benefits. According to the Kline & Company research, around 60% of lodging establishments already have a green laundry program in place. Plus, 95% of commercial laundries look for green products and services to appeal to customers. Laundries should ensure that a chemical dispensing system helps save resources like water and energy by reducing rewash rates and measuring water and chemical consumed in the dosing process.


It’s impossible for any business to prevent linen stains. However, by selecting the right chemical dispensing solution, it is feasible to remove stains on the first attempt. In turn, this lengthens the life of linen and lowers costs. 

With the help of chemical dispensing systems, laundries big and small can expect clean linen and a more productive laundry process with each and every spin cycle.

About the author

John Goetz

Hydro Systems

Global Product Manager

John Goetz is a global product manager with Hydro Systems, an independent manufacturer of chemical injecting, proportioning, dispensing and medicating equipment.


Latest Podcast

It’s important for laundry operations to have balanced revenue, and this conversation with Rick Snyder, owner and general manager of U.S. Linen & Uniform in Richland, Washington, will explore how operations can expand wisely.

Want more? Visit the archive »

Digital Edition

Latest Classifieds