Hauke Schmidt
· 07.10.2026
Anyone spending a long time at sea away from harbours will soon find themselves wishing for larger water tanks – or even a watermaker. On smaller yachts, however, the space and energy requirements often make a watermaker an unattractive option. This is precisely where the compact Qube 30 comes into its own. According to the manufacturer, it is designed for yachts of around 40 feet.
The Qube 30 can be powered directly from the vehicle’s electrical system at 12 or 24 volts and is designed to draw 110 watts of power. According to the manufacturer, Qube units utilise energy recovery: some of the energy used in the desalination process is reused within the system. The YACHT overview of watermakers and their installation shows which questions are important to consider before choosing a system.
Unlike the low-profile Zen series, the Schenker’s Qube range a more compact, roughly rectangular design, which is said to be better suited for installation in smaller storage spaces. Schenker has, with Zen 30 and Smart 30 The range already includes watermakers in the same nominal flow rate class. The Qube 30 expands the range with an additional model. A German list price is not yet available.
| Nominal flow rate | 30 l/h |
| Power consumption | 110 W |
| Supply | 12 or 24 V |
| Planned crew | Serves 3 to 4 people |
| Dimensions of the watermaker unit (W × H × D) | 73.5 × 25.5 × 20.8 cm |
| Weight of the watermaker unit | 18.1 kg |
| Dimensions of the separate pump (W × H × D) | 28.8 × 21.3 × 17.8 cm |
| Weight of the pump unit | 4.4 kg |
What matters in terms of performance, space requirements and installation is explained “Drinking water: Water galore”. The importance of fuel capacity for longer cruises is demonstrated by “More fuel capacity, greater self-sufficiency”.
A Brief Guide to Blue-Water Sailing By Sönke and Judith Roever, this book examines the equipment on a long-distance yacht in the context of energy management, supplies and everyday life on board. This adds to the question of whether a watermaker such as the Qube 30 is suitable for one’s own yacht: it is not just the flow rate that matters, but also how the system is integrated into the overall concept for electricity and water. The book addresses this planning from the perspective of longer voyages.
Would a compact watermaker with a capacity of 30 litres per hour be a good option for your yacht, or would you prefer to use the space for a larger water tank? Have a chat with us about water requirements and the on-board power balance.

Test & Technology editor