DAB EsyTwin Mini - 44 GPM 79 psi 2-Pump Booster System with Dock and 2 Gal Tank, Self-Priming, 2.2 HP, 1 in NPT

A complete two-pump pressurisation system for a single residence or small building that has outgrown one Mini3. Two Esybox Mini3 units pair wirelessly — no external controller, no rewiring — and share the work: run both together for up to 44 GPM, or keep one in reserve so the building never loses pressure if the other stops. The Esytwin Mini dock stands them side by side in about half the footprint, and a 2-gallon diaphragm tank lengthens runs and reduces cycling to extend the life of both pumps.

Because each pump carries a share of the flow, each sits higher on its own curve — so at any working flow, the pair holds more pressure than one pump would at that same flow. Only the shut-off ceiling at zero flow is fixed, unchanged at 79 psi. The performance table below is read at the flow the pair delivers.

Group figures follow DAB’s parallel-pump method: each pump carries half the total flow, so the pair’s curve is the single-pump curve read at half the system flow. DAB publishes no combined table for the Mini3; size a pair against the system curve rather than by doubling a single-pump maximum.

The figures below are the pressure the system adds at each total flow, both Mini3 units running. That is what the pump curve measures — the impellers do not know what pressure is already on the inlet.

Drawing from a tank, cistern or well — nothing arrives with pressure, so what the system adds is what you get. Read straight through: 16 GPM comes out at 69 psi.

Fed by a city main — the system adds on top of what already arrives, and the controllers hold up to 79 psi total. Incoming pressure buys you more flow, not more pressure.

Best operating range: roughly 14 to 26 GPM across the pair. This is where the system turns the most electricity into water pressure.

Both pumps connect to the free DAB DConnect app, which gives setup, status and live operating parameters from an iOS or Android device.