BWT AQA drink Pro 20

The AQA drink Pro 20 is a point-of-use water dispenser supplied by BWT in two configurations. As a countertop unit, it measures 230 by 390 by 360 millimetres in width, height and depth and weighs 18 kilograms net, 21 gross. As a floor-standing unit, the same dispenser sits on a base cabinet, and the total height grows to 1,190 millimetres with unchanged width of 230 millimetres and depth of 360 millimetres. The base cabinet alone is specified at 230 by 800 by 360 millimetres; 390 plus 800 equals exactly 1,190 for the floor-standing unit, so the figures are internally consistent.

23-centimetre width is the core selling point. A unit of this class thus fits into gaps where no refrigerator would fit, and the dispensing height of 21.5 centimetres accommodates standard carafes and bottles.

The base cabinet is not merely a plinth; it solves three operational issues at once. It accommodates the filter and CO2 bottle, carries a suspended waste water tank of approximately 3 litres with a fill-level sensor in the upper section, and features an integrated cup dispenser that accepts standard 180-millilitre cups. Those choosing the countertop variant must find space elsewhere for the filter, CO2 bottle and cups, and without a waste water tank, the drip tray requires either an optional waste water connection or someone to empty it. This is precisely where an operational lockout engages: according to the operating manual, with reported leakage or a full drip tray, water dispensing is not possible; the unit sounds an acoustic signal and the UV lamp flashes.

An installation dimension is not stated in the datasheet but in the troubleshooting section of the manual: at least 150 millimetres of clearance behind the unit must be maintained, and at ambient temperatures above 30 degrees, BWT explicitly recommends lowering the room temperature or relocating the dispenser. Installing the dispenser in a sealed alcove will result in lukewarm water. The unit is available in white.

At BWT, model designations are not marketing abbreviations but an order checklist. The catalogue explains them: C stands for cooled water, A for still or ambient-temperature, S for carbonated, H for hot. And here lies the point that must be understood before ordering: each variant supplies exactly three of the four options, never all four.

The CAS model supplies ambient-temperature still water, cooled still water and carbonated cooled water, but no hot water. The HCS model supplies hot, cooled and carbonated cooled water, but forgoes ambient-temperature still water. The HCA model has hot, cooled and ambient-temperature water, but no carbonation, which the technical table in the operating manual confirms: the HCA lists no maximum CO2 pressure. Those seeking carbonation, hot water and ambient-temperature still water simultaneously will not find it in this range.

The variants differ less in performance than in product range. The unit dispenses cooled or carbonated water at 20 litres per hour, still water at more than 120 litres per hour, and hot water on the HCS at 9 litres per hour. Cold water temperature ranges from 4 to 12 degrees, measured at approximately 20-degree inlet temperature; hot water reaches 90 to 95 degrees. BWT specifies the flow rate at over 2 litres per minute. The catalogue specifies approximately 20 users as the target size.

The internal tanks are small and explain the varying hourly output: 2.5 litres for CO2 and cold water on the HCS, 2.7 litres on the HCA, plus 0.7 litres for hot water. After the tank, the unit operates in through-flow mode, with cooling or heating capacity determining the rate.

For hygiene, an 11-watt UV lamp sits at the water outlet. A detail from the manual belongs in user briefing: if disinfection is needed, the lamp can operate for longer than 120 to 180 seconds and warm the water in the process; it should then be allowed to run a bit longer.

The dispenser is not designed to operate without a filter, and filter selection is the real product-range decision for this unit. BWT names two cartridges for the AQA drink Pro 20.

The MPC500 with part number 12596 belongs to the Magnesium Mineralized Water Care line. It filters and mineralizes with magnesium, and according to the catalogue, an ultrafiltration membrane retains 99.999 per cent of bacteria and reduces microplastics to 0.001 millimetre. BWT specifies its capacity at 2,500 litres at 12 degrees German hardness for cold-water application. With the filter head, the cartridge is 527 millimetres tall at 147 millimetres diameter, so it requires the base cabinet or a cupboard alongside.

The TC200 with part number 12655 belongs to the Filtered Water Care line, does not mineralize, reduces chlorine and organic matter, and has the same ultrafiltration performance. BWT specifies its capacity at 2,250 litres total throughput for hot and cold-water applications. It is considerably smaller, 385 millimetres tall at 88 millimetres diameter, and according to the catalogue is intended for water dispensers at water hardness below 6 degrees German hardness.

Thus filter choice hinges on water hardness at the site, not on preference: from 6 degrees up, the mineralizing cartridge; below that, the TC200. Those testing this only after installation may have the wrong cartridge size in stock.

One inconsistency warrants mention: the datasheet for the CAS variant specifies bacterial retention at 99.9999 per cent, the master catalogue at 99.999 per cent. One nine difference, two manufacturer documents. For the assessment this changes nothing, but it does for datasheet reliability, and in doubt the lower figure applies.

Carbonation operation depends on CO2. According to the manual, pressure is set at 3.5 bar, with up to 4 bar possible depending on preference. In household use, the unit works with an adapter for 425-gram bottles; in commercial operation with an adapter for 2-kilogram bottles and larger cylinders.

Whoever installs this dispenser buys a maintenance plan alongside it. BWT is unusually explicit on this point, and the figures appear not in the datasheet but in the operating manual.

According to the manufacturer, maintenance intervals depend on water throughput, water quality and environmental conditions. BWT recommends cleaning and disinfection of the dispenser and water filter replacement at least half-yearly, to be performed by qualified staff. The UV lamp should also be replaced half-yearly, depending on switching cycles and water withdrawal frequency. There is also a task that rests on operational staff, not on the technician: for flawless hygiene, the dispenser should be cleaned weekly by a responsible and trained person, and the hygiene protocol in the manual specifies daily cleaning of the water dispensing area including drip tray with hygiene spray and subsequent dry wiping. Manual chapters 9 and 10 provide a hygiene checklist and a protocol form with fields for date, signature, cleaning, disinfection and filter replacement.

This chain is why a water dispenser rarely works well in an operation without assigned responsibility. Weekly and daily tasks must be someone's responsibility on the roster.

Technically, the unit is built for water, not coffee: liquid cooling, R134a refrigerant with a charge of 36 grams, maximum cooling capacity 150 watts, total power draw 230 watts, mains supply 220 to 240 volts at 50 hertz. Drinking water and CO2 connections are each 1/4 inch; recommended inlet water pressure is 3 bar, maximum 5 bar. A leak detection system is fitted. According to the manual, the delivery includes drip tray, power cable, hose and angle valve.

The point most often overlooked in carbonation operation is CO2 safety. The manual requires advance determination of the maximum bottle contents based on available room volume, and for rooms that are too small, lists removal of the door, installation of a CO2 gas warning device to DIN 6653-2 or mechanical ventilation. A dispenser with a 2-kilogram cylinder in a confined tea room is thus not merely a furniture issue.

BWT quotes no price for the AQA drink Pro 20 in datasheet or catalogue; the unit is sold through the manufacturer's shop and specialist retailers. This page therefore passes on no figure that cannot be substantiated.

What can be substantiated is the cost structure, and it differs for a water dispenser from a coffee vender. Capital expenditure has three tiers: dispenser, configuration and accessories. The base cabinet is a separate part number in the datasheet, 825063 against 825060 for the dispenser itself, and without it there is no filter space, CO2 space, waste water tank or cup dispenser. The catalogue also lists separate sales numbers by configuration and water option: 26026 for CAS as countertop, 26025 for CAS as floor-standing, 26027 for HCS as countertop, 26028 for HCS as floor-standing.

The running cost item is the filter, and it is quantifiable. The MPC500 holds 2,500 litres at 12 degrees German hardness. With approximately 20 users as BWT specifies and assuming 0.7 litres per person per working day, that is about 14 litres per day, or well over 3,000 litres per year at 220 working days. One cartridge thus mathematically does not last a full year, and the manufacturer's recommendation to replace at least half-yearly aligns with this scale. Add to this the UV lamp on the same schedule and half-yearly disinfection by specialists.

The comparison that determines value for money is thus not unit against unit, but unit against bottled water. 3,000 litres per year equals more than 6,000 half-litre bottles, accounting for purchase, delivery, storage space, deposit handling and return logistics. In drawing this comparison, the dispenser side should include the filter, UV lamp, half-yearly professional maintenance and weekly cleaning by in-house staff, otherwise only half the calculation is being compared.

Publicly verifiable operator feedback on durability and service quality could not be found; that section therefore remains empty rather than filled with quotations.

Status: Last updated 7 September 2026. Technical data from BWT's datasheet for the CAS model, the AQA drink master catalogue and the operating manual for HCS and HCA models.