For a laundromat or an on-premise laundry in a hotel, motel or aged care facility, the chemical dispenser is what keeps every wash consistent, hygienic and cost-controlled. Get the dosing right and linen comes out the same every time, at a predictable cost, with nobody measuring anything. Get it wrong and you deal with residue, rewashes, wasted chemical and worn-out linen. This guide explains how modern laundry dosing works, why the EvoClean venturi dispenser has changed things for laundromats and on-premise laundries, and how to get the most from it.
For the range we supply, see our laundry dosing systems.
How Modern Laundry Dosing Works
An automatic laundry dispenser doses detergent, softener, sour and sanitiser into the machine at the right point in each cycle, triggered by the washer. For years these systems used peristaltic pumps, which squeeze chemical through flexible tubes. Those tubes wear, and as they wear the dose drifts and under-delivers, so results and chemical use become unpredictable. EvoClean takes a different approach.
Why EvoClean
EvoClean is a venturi-based, water-powered laundry dispenser. Instead of squeezing chemical through tubes, water flowing through the unit draws each product and injects it at an accurate, repeatable rate. There are no squeeze tubes and no moving parts in the dosing path, which removes the maintenance and the drifting dose that come with peristaltic systems. Hydro Systems reports more than 30,000 EvoClean units in the field since its launch.
- No squeeze tubes to replace: The venturi design eliminates the single biggest maintenance job on peristaltic dispensers, and the downtime that goes with it.
- More consistent dosing: Delivery stays accurate over time, rather than tailing off as tubes wear.
- 4, 6 or 8 products: Dose detergent, softener, sour, sanitiser and destainer to a set formula, with low or high flow to suit your machines.
- Formula control and reporting: The Total Eclipse controller holds up to 20 formulas with Auto Formula Select, and reports product usage and cost per formula.
- Water and energy savings: The eductor restricts flow, so it uses less water than peristaltic systems.
- Compact and quick to install: It is lighter and smaller than traditional dispensers, with plug-and-play connections.
- Integrated flush manifold and low-level alarm: Built-in flushing keeps chemistry clean between products, and the alarm flags an empty container.
EvoClean for On-Premise Laundries
Hotels, motels and aged care facilities are exactly what EvoClean was built for. On these small to medium machines it delivers consistent, hygienic results across guest and resident linen, doses multiple products to the right formula for each fabric and soil level, and keeps running with almost none of the maintenance a peristaltic dispenser demands. The controller’s usage and cost reporting shows what each wash actually costs, which matters when linen budgets are tight.
- Consistent linen quality that protects your reputation.
- Hygiene support for aged care and healthcare linen through repeatable dosing.
- Multiple formulas for different fabrics, soil levels and machines.
- Low maintenance and less downtime, with no tubes to change.
EvoClean for Laundromats
For laundromats running commercial washers, and for wash, dry and fold services, EvoClean doses the right chemistry into each machine automatically, so customers never buy, carry or measure detergent and every load is consistent. Formula-based dosing and cost reporting make it straightforward to build the chemical into the price of a wash and see your true cost per cycle.
- Consistent results on every cycle, the biggest driver of customer satisfaction.
- No detergent for customers to bring, and the chemical can be built into the wash price.
- A cleaner store, with concentrate stored safely away from customers.
- Usage and cost reporting to manage chemical spend across the site.
Why Inconsistent Dosing Costs You
Whether the cause is hand-pouring at a small site or worn squeeze tubes on an older dispenser, an inaccurate dose costs money both ways:
- Too much: Excess chemical is wasted, leaves residue on linen, can trigger rewashes and shortens fabric life.
- Too little: Under-dosed loads come out inadequately cleaned and get rewashed, using more water, energy, chemical and time on the same linen.
Accurate, repeatable dosing removes that variability, which is where a venturi dispenser like EvoClean earns its place.
What Accurate Dosing Delivers
- Consistency: Every load gets the same correct chemistry, so results are reliable across cycles, shifts and staff.
- Lower chemical cost: An accurate dose removes the over-pour and the under-delivery, so you use only what each wash needs.
- Longer linen life: Correct chemistry and fewer rewashes mean less wear on your linen stock.
- Less rework: Getting the wash right first time cuts rewash cycles and the water, energy and time they consume.
- Safety and compliance: Chemical is dispensed from a closed system rather than handled neat, and repeatable dosing supports hygiene standards in aged care and hospitality.
Getting the Dose Right: A Worked Example
The saving is easiest to see in the cost per wash. Take a detergent concentrate at $6 per litre, dosed at 60 mL per wash:
- Cost per wash: 0.060 L x $6 = $0.36.
- A motel or aged care laundry running 30 washes a day: 30 x $0.36 = $10.80 per day on that machine.
If an inaccurate dose runs 30 per cent heavy, that climbs to about $0.47 per wash, or $14.04 a day, roughly $3.20 a day wasted on one machine and more than $1,100 a year for a laundry running seven days a week, before rework and linen wear. A laundromat running several machines multiplies it. With EvoClean, the Total Eclipse controller reports your actual product usage and cost per formula, so this stops being an estimate and becomes a measured figure. The figures here are illustrative.
Getting the Most from EvoClean
A dispenser set to a formula still rewards good habits and a periodic check:
- Use the reporting: Review usage and cost per formula to catch drift or over-use early.
- Match formulas to the work: Set formulas for the fabrics, soil levels and machines you actually run, rather than one setting for everything.
- Watch the results: Residue, greying or stiffness on linen, and a rising rewash rate, are the first signs something needs attention.
- Keep it flushing: The integrated flush manifold stops products cross-contaminating, so keep it maintained.
Choosing the Right EvoClean
EvoClean comes in 4, 6 and 8 product configurations, with low or high flow rates to match your washer sizes and the number of chemicals you run. A small motel or aged care laundry running a few products is well served by a four-product low-flow unit, while a busier site running detergent, softener, sour, sanitiser and a destainer will want six or eight products. We can match the configuration to your machines and chemistry.
EvoClean Laundry Dosing FAQ
What is EvoClean and how does it work?
EvoClean is a venturi-based, water-powered laundry chemical dispenser. Instead of squeezing chemical through tubes like a peristaltic pump, it uses water flowing through the unit to draw each product and inject it at an accurate, repeatable rate, triggered by the washer at the right point in the cycle. It doses up to eight products to a set formula and is run by the Total Eclipse controller.
How is EvoClean different from a peristaltic pump dispenser?
Peristaltic dispensers squeeze chemical through flexible tubes that wear over time, which causes the dose to drift and under-deliver and creates a regular maintenance job. EvoClean has no squeeze tubes and no moving parts in the dosing path, so delivery stays consistent, maintenance is minimal and there is less downtime.
How many chemicals can EvoClean dose?
EvoClean is available in 4, 6 and 8 product configurations, so it can dose detergent, softener, sour, sanitiser and a destainer to a set formula. Low and high flow rate options suit different washer sizes.
Is EvoClean suitable for a hotel, motel or aged care laundry?
Yes. EvoClean was designed for on-premise laundry, which is exactly the small to medium machines found in hotels, motels and aged care. It delivers consistent, hygienic results across guest and resident linen with very little maintenance, and its controller reports the cost of each formula.
Can EvoClean be used in a laundromat?
Yes, for laundromats running commercial washers and for wash, dry and fold services. It doses the right chemistry into each machine automatically, so customers do not handle detergent and every load is consistent, and its reporting helps you manage chemical cost across the site.
Does automatic dosing save money?
Yes. Accurate dosing removes the over-pour of manual dosing and the under-delivery of worn peristaltic tubes, so you use only the chemical each wash needs and cut the rewashes that waste water, energy and labour. EvoClean’s usage and cost reporting lets you see the saving rather than estimate it.
Request an EvoClean Dosing Quote
Tell us whether you run a laundromat or an on-premise laundry, your machine sizes and the products you dose, and we will match the right EvoClean configuration to your operation.
This article is general guidance only. Always follow your chemical supplier’s recommended dose rates and the product labels, and check chemical compatibility with your equipment before use. Cost figures are illustrative examples.

