Short answer: The MARG Automatic Filling System for Beverage Dispensers is an independent universal retrofit system fitted onto existing classic 2/3/4-bowl juice dispensers (cold beverage dispenser / juice bubbler). It senses the reservoir level without changing the dispenser's own cooling, mixer and motor-electronics; from an external unit it feeds water and concentrate through separate lines and mixes them only in the reservoir (post-mix). The concentrate is drawn from a bag-in-box or tank.
What Is an Automatic Filling System for Beverage Dispensers?
Instead of traditional manual filling, it is a mechanism that fills the reservoir under level control without user intervention. It consists of a Fill-Sensing Head fitted to the reservoir lid and a concealed Feed and Control Unit that feeds the water and concentrate.

What It Is NOT · What Changes?
It is not a new beverage dispenser; it is not a bottle/packaging filling machine. It is an independent, retrofit system that converts an existing dispenser to auto refill (autofill).
| Dispenser's cooling | Unchanged |
|---|---|
| Mixer / motor | Unchanged |
| Existing body | Unchanged |
| Cooling/motor electronics | Unchanged (independent external unit) |
| Reservoir lid | Fill-Sensing Head added |
| Rear / under-counter | External Feed and Control Unit added |
Summary Facts
| Product type | Universal retrofit automatic filling system |
|---|---|
| Mounting | Retrofit, removable |
| Compatible machine | Existing 1/2/3/4-bowl transparent-reservoir beverage dispenser / cold beverage dispenser / juice bubbler |
| Number of channels | 1-4 (each channel independent) |
| Level sensing | Conductivity electrodes (liquid-contacting) |
| Feed inputs | Water + concentrate (separate lines, post-mix) |
| Electrical intervention on the dispenser | None (independent external unit) |
| Control unit location | External (under-counter / rear) |
| Manufacturer | MARG Engineering (Antalya, Turkey) |
Exact litre/power/flow/ratio figures vary by application; verified on a per-project basis.
How It Works?
Level sensing
Conductivity electrodes sense the level; it stops when FULL.
Water + concentrate separate
They arrive through separate lines and do not mix in the feed pipes.
Post-mix
Mixing only in the reservoir → line hygiene improves. Regular cleaning is still required.
1-4 reservoirs
Each channel is independent.
Concentrate & Bag-in-Box Feed
The concentrate is drawn by a peristaltic pump from a bag-in-box (BiB) box or from a tank. You can use your own traditional syrup; you are not tied to a particular brand. Concentrate filling system →
Capacity Variations
1-unit · 2-unit · 3-unit (standard) · 4-unit.




Components

Fill-Sensing Head
The end unit fitted to the reservoir lid.

Feed and Control Unit
Water + concentrate feed, level control.
Hygiene - Post-Mix Advantage
Because water and concentrate do not mix in the pipes, the diluted product does not sit in the feed lines → the risk of biofilm/spoilage is reduced. Details → It is risk-reducing; regular cleaning is still required.
Technical Specifications
| Number of reservoirs supported | 1, 2, 3 or 4 (each channel independent) |
|---|---|
| Level sensing | Conductivity electrodes (liquid-contacting) |
| Concentrate pump | Peristaltic |
| Water control element | Solenoid valve |
| Feed architecture | Water and concentrate on separate lines; mixing only in the reservoir (post-mix) |
| Concentrate source | Bag-in-Box (BiB) or tank |
| Supply voltage | 220 V AC |
| Installation | Retrofit — fits onto the existing machine, removable |
| Compatible beverages | Sherbet, juice, lemonade, ayran, etc. (non-carbonated) |
| Capacity · power · fill rate · water/concentrate ratio | Varies by configuration/application |
Only verified values are given; exact litre/power/flow/ratio figures vary by application and are shared on request.
Who Is It For?
Patisserie · hotel buffet · restaurant · cafe/juice bar · catering · wedding venue · mall food court. Also for beverage dispenser/dispenser manufacturers (OEM/license). It is also suitable for businesses looking for automatic filling for juice machines and automatic filling for beverage dispensers.
Frequently Asked Questions
What is an automatic filling system for beverage dispensers?
It is a system that fits onto your existing machine and automatically fills the reservoir under level control.
How is automatic filling done on a beverage dispenser?
A fill-sensing head and a concealed feed unit are fitted to the beverage dispenser; as the reservoir empties, water and concentrate fill automatically and stop at the full level. No manual filling is needed.
Can it be fitted to my existing beverage dispenser?
Yes - it is a retrofit; it fits without replacing the machine and can be removed again.
How does it draw the concentrate - bag-in-box or tank?
Both: from a BiB box or from a tank by a peristaltic pump.
Can I use my own sherbet/syrup?
Yes, you can draw your own product from a tank.
Where do the water and concentrate mix?
Only in the reservoir (post-mix); they do not mix in the feed pipes.
How many reservoirs are supported?
1, 2, 3 or 4 reservoirs.
Can I license it as a manufacturer?
Yes - contact us for OEM/licensing. Patent-pending (No 2026/014435).
Why are water and concentrate carried separately?
So that diluted product does not sit in the feed lines: mixing happens only in the reservoir (post-mix), which improves line hygiene.
How does the system stop when the reservoir is full?
When the level electrodes detect the FULL level, the water valve and concentrate pump switch off; as consumption lowers the level, the cycle repeats.
How is the level sensed?
By the conductivity electrodes in the Fill-Sensing Head fitted to the reservoir lid; when the liquid touches the electrode tip, the FULL signal is formed.
Does it work on machines with 2, 3 or 4 reservoirs?
Yes; 1-4 reservoirs are supported and each channel works independently.
Can it be used in hotels, buffets and restaurants?
Yes; it is suitable for patisseries/dessert shops, hotel buffets, restaurants/cafes, catering and wedding venues.
