In self-service laundry, the single biggest driver of customer complaints is a wash that does not come out clean, and the usual cause is the customer using too little or too much detergent. It is the one part of the process a laundromat operator cannot control, until you automate it. Automatic detergent dosing removes that variable from every machine, and in doing so it also opens up a margin most operators are leaving on the table.
Precision Flow Solutions supplies and installs detergent, softener and sanitiser dosing systems for laundromats across Australia. This guide explains why operators are switching to automatic dosing, how it works, and how it turns chemical from an uncontrolled cost into consistent results and built-in revenue.
Short answer: an automatic dosing system injects the right amount of detergent, softener or sanitiser into every wash, so customers never measure or carry product and every load comes out clean. You control chemical cost, build detergent into the wash price, and run the site with far less hands-on management.
Why Laundromats Are Switching to Automatic Dosing
Automatic dosing solves a customer problem and a business problem at the same time. It removes the inconsistency that generates complaints, and it converts detergent from a cost you cannot see into a controlled, revenue-generating part of every wash.
- Consistent wash quality. Every load is dosed correctly, so customers get clean results without guessing.
- Detergent built into the wash price. Chemical becomes a controlled cost and a point of difference against bring-your-own sites.
- Lower chemical cost. Accurate metering stops overdosing and reduces spend across a busy site.
- A cleaner store. No detergent spills, no abandoned bottles, and concentrate stored safely away from customers.
- Less hands-on management. Ideal for unattended and 24/7 operations.
- A modern customer experience. Load, pay, start, with nothing to buy or measure.
How Laundromat Dosing Works
A dosing system connects to each washer and meters preset amounts of chemistry into the machine at the correct point in the cycle. The process is automatic and needs no customer involvement:
- The washer signals the dispenser at the start of the relevant cycle stage.
- The dispenser meters the correct amount of detergent, softener or sanitiser.
- The chemistry is injected into the machine and the wash proceeds.
- The customer simply loads, pays and starts, with no product to handle.
Automatic Dosing vs Bring-Your-Own Detergent
| Factor | Bring your own detergent | Automatic dosing |
|---|---|---|
| Wash consistency | Varies with each customer | Correct on every cycle |
| Customer effort | Must buy, carry and measure | Load, pay and start |
| Detergent revenue | None to the operator | Built into the wash price |
| Store cleanliness | Spills and abandoned bottles | Concentrate stored securely |
| Chemical cost control | None | Accurate metering, less waste |
| Suits unattended and wash, dry and fold | Limited | Yes |
What Gets Dosed
- Detergent for the main wash.
- Fabric softener for finish and feel.
- Sanitiser or disinfectant where hygiene matters, such as healthcare or aged care linen, or in pet-wash machines laundering dog bedding, where a sanitiser is dosed to help control the spread of pathogens like parvovirus.
- Destainer or oxygen bleach as an optional additional product.
Multi-product systems meter each of these at its own rate and cycle stage. The number of products depends on the dispenser and the needs of your site.
You Do Not Need New Machines
Adding automatic dosing does not mean replacing your washers. Most commercial and many self-service machines can have a dosing system retrofitted, so you can upgrade your current site without the cost of new equipment. We assess your machines and recommend the right system for your layout and throughput.
Which System Suits Your Site
The right system depends on how your site runs. Dosing helps across every laundromat format:
| Site type | How dosing helps |
|---|---|
| Unattended 24/7 (card and app) | Runs without staff and keeps results consistent around the clock |
| Attended stores | Frees staff from measuring product and reduces chemical waste |
| Wash, dry and fold and drop-off | Delivers commercial-grade consistency across high volumes |
| Communal and multi-housing laundries | Reliable dosing for apartment blocks, retirement villages and caravan parks |
Precision Flow Solutions is the Australian supplier for the leading laundry dosing brands. Hydro Systems venturi dispensers, including the EvoClean, dose multiple products accurately without the peristaltic squeeze tubes that need regular replacement, which keeps maintenance and downtime low on a busy unattended site. Knight laundry systems use Electronic Diaphragm Pumps (EDP), air-operated pumps and peristaltic pump technology, with controllers and flush manifolds for multi-machine sites. For a plain-English look at the difference between the two dosing technologies, see our guide to peristaltic vs venturi dosing, or browse the full laundry dosing range.
Local Supply, Installation and Support
We supply, install and service laundromat dosing systems across Australia from our Northmead base in Sydney, and we hold local stock of dispensers, controllers and spare parts for fast support. Tell us about your machines and throughput, and we will recommend the right system for consistent washes and lower chemical cost.
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Or call 02 9625 8122 or email CustomerService@preflow.com.au.
Frequently Asked Questions
What is a laundromat dosing system?
A laundromat dosing system is equipment that automatically injects the correct amount of detergent, softener and sanitiser into each washing machine on every cycle. It removes the need for customers to bring or measure detergent and delivers consistent results across a self-service site.
Can I add automatic dosing to my existing laundromat machines?
In most cases, yes. Automatic dosing can be retrofitted to most commercial and many self-service washers, so you can upgrade your current site without replacing machines. We assess your equipment and recommend a system that fits your layout and throughput.
Do customers still bring their own detergent with automatic dosing?
No. Once a dosing system is installed, the correct chemistry is dispensed for every wash, so customers do not need to bring or buy detergent. Operators usually build the cost of chemical into the price of the wash, which adds margin and keeps the store tidy.
Which dosing system is best for an unattended 24/7 laundromat?
Unattended sites are best served by a reliable, low-maintenance system that runs without staff. Venturi-based dispensers such as the Hydro Systems EvoClean suit these sites because they dose accurately without peristaltic squeeze tubes that wear out, which keeps downtime and callouts to a minimum.
Does automatic dosing actually save money?
Yes, in two ways. Accurate metering stops the overdosing that inflates chemical spend on a busy site, and building detergent into the wash price turns chemical into revenue rather than an uncontrolled cost. Together these usually offset the cost of the system over time.