DAB Esybox: How to boost water pressure in a building

Low or fluctuating water pressure can make everyday water use difficult in a home, guest accommodation, a commercial property or a workplace. The problem often becomes noticeable when several outlets are used at the same time or when the system has to supply upper floors well above the water source.

This guide explains when to consider a DAB Esybox system, what to check when choosing a model, and how an electronic booster set differs from a conventional pressure-boosting system. It also explains the roles of EsyTank and EsyDock and when a Twin configuration may be suitable.

Contents

1. When should you consider boosting water pressure?
2. How does the DAB Esybox system work?
3. What information should you gather before selecting a pump?
4. When should you choose Esybox Mini³ or a larger model?
5. When is an EsyTwin set worth considering?
6. EsyTank and EsyDock in an Esybox installation
7. What are the benefits of pairing a pump with a compatible tank?
8. DAB Esybox or a traditional booster set?
9. How should you compare noise, cost and operation?
10. What should you tell the installer before the design is prepared?
11. Key takeaways

When should you consider boosting water pressure?

A pump may be worth considering if pressure repeatedly drops throughout a building, particularly when several showers, washbasins, kitchen taps or items of process equipment are used at the same time. In a home, this might happen during the morning rush; in guest accommodation, just before guests leave; and at a workplace, at the start of a shift or during a break. Similar issues can arise in residential buildings, commercial properties and workplaces. At a site in a hilly area, the difference in elevation between the water source and the highest outlet may be significant. At a seasonal site, the problem may be a short but intense peak in demand. In a workplace, pressure may fall when staff facilities and process equipment are being used at the same time.

Before deciding to buy a pump, check whether the problem affects the whole system. A weak flow from just one tap may be caused by a blocked filter, a dirty aerator or a local restriction in the pipework. If several outlets are affected, measure pressure and flow under typical and peak-demand conditions, and check the pipes, fittings and water source.

A pump cannot make up for an inadequate water supply. If the mains, a well or an existing tank cannot deliver the required volume, choosing a larger model will not solve the underlying problem. First establish whether the limiting factor is pressure, the capacity of the water source, the installation or the way water is being used.

How does the DAB Esybox system work?

Esybox is an integrated pressure-boosting system in which the pump works with electronic controls and a frequency inverter. The system adjusts pump speed to match current demand, helping to maintain the set pressure as water use changes. In practice, this can reduce noticeable pressure fluctuations when another outlet is opened.

Components that are often selected separately in a traditional set are housed in a single unit. Esybox also has a small built-in expansion vessel, but this is not a large tank for storing a reserve of water. If the design requires water storage, a separate EsyTank may be considered; it is a different component with a different function.

The system may be suitable for a range of sites, from homes to service and commercial installations. The type of building alone does not determine which model to choose. The right model depends on the actual flow rate, required pressure, water-source conditions and pipework layout.

What information should you gather before selecting a pump?

Start by estimating the maximum flow rate that may be needed at the same time. Make a list of showers, washbasins, dishwashers, washing machines, staff facilities and process equipment, then estimate which may be in use simultaneously. The number of users matters, but so does when and how they use water.

The installer should know the water source and its capacity, the pressure at the pump inlet, the height of the building and the distance to the furthest outlet. Pipe length and diameter, bends, valves, filters and the condition of the existing installation also matter. The higher and further away an outlet is, the greater the pressure losses along the way may be.

Observations from peak periods are useful: note when the problem occurs, which outlets are affected and how many outlets are open. Share information about seasonal use as well. A building used all year may have very different requirements from a seasonal site that serves many more people for a few weeks each year.

When should you choose Esybox Mini³ or a larger model?

Esybox Mini³ may be suitable for domestic installations where the required flow rate and pressure fall within its operating range. DAB lists a flow rate of up to 80 l/min and a maximum head of 55 m for this model. The standard Esybox has a wider operating range — up to 120 l/min and a maximum head of 65 m — so it may be worth assessing where simultaneous demand or the required head is greater. These are maximum values within the operating range; they cannot be achieved at the same time. The choice depends on the pump’s duty point on its performance curve: the flow rate and pressure required at the most demanding point in the installation, allowing for inlet pressure and losses through pipes and fittings. If the water source has insufficient capacity, a larger Esybox will not solve the problem.

Compare the pump curve with the installation’s requirements at the actual duty point, rather than relying on a single maximum figure in a catalogue. If the unit is to work with a tank, docking station or second pump, check that every accessory is compatible with the chosen model. Browse DAB E.sybox products on Bosta.

When is an EsyTwin set worth considering?

An EsyTwin set, with two pumps working together, is worth assessing when a site has high or variable water demand or needs planned standby capacity. Depending on the configuration, the pumps can operate alternately or at the same time. Running them together can increase the available flow rate if the required flow exceeds the capacity of a single pump.

The second pump may also provide backup. This does not mean that the site will continue to operate at full capacity if one unit fails. If a single pump cannot meet the full demand, operating with just one may require water use to be restricted. The level of backup should therefore be defined in the design, taking the control method and expected load into account.

A Twin set does not automatically double the pressure. The result depends on the pump models, how they are connected, the settings and the installation conditions. The capabilities of larger sets also depend on the equipment used and the design. Before choosing a configuration, discuss with the installer whether the priority is a higher flow rate, continuity of operation or both.

EsyTank and EsyDock in an Esybox installation

The pump boosts pressure, EsyTank stores water and EsyDock is the pump’s docking base. These functions are different: a tank on its own does not increase pressure in the installation, and a docking base does not store water. The right components, selected to work with the pump, help create a system suited to the site’s needs.

An EsyTank may be useful when a reserve of water is needed or the incoming supply cannot keep up with short-term demand. The design should take account of how quickly the tank can refill, how much reserve is required and whether the tank capacity matches peak demand. Storage can help bridge short-term differences between incoming supply and demand, but it cannot increase the volume of water the source can deliver over a longer period.

EsyDock connects the pump to the installation; a compatible docking base can also make it easier to disconnect the pump for servicing. Bosta offers, among other options, the DAB EsyTank 500 storage tank, the DAB EsyDock docking station, an EsyTank 500 for E.sybox Mini³ and an EsyTank 300 for E.sybox, supplied with connection components. Before ordering, check what is included and confirm compatibility with the pump model you have selected.

What are the benefits of pairing a pump with a compatible tank?

A compatible set makes it easier to plan the layout in a plant room. You can establish where the pump, tank and connections will go, making it easier to account for the available space, pipe runs and access for operation. Instead of selecting components separately without checking how they fit together, the design can be based on products intended to work together.

A well-organised layout may make installation and future servicing more convenient. EsyDock and dedicated connections can simplify the pump connection, and access to serviceable parts can be planned from the outset. Every installation is different: the time and work involved depend on the existing pipework, site preparation and any modifications required.

A tank takes up additional space and must be installed securely, with access for inspection. Before choosing one, check its dimensions, the location of the filling connection and overflow, the fixing method and the space needed to service the pump. A well-planned set can make the plant room look tidier, but functionality should come first.

DAB Esybox or a traditional booster set?

A traditional booster set generally consists of a separate pump, pressure vessel and control unit, such as a pressure switch. In an Esybox system, the pump and electronic controls are integrated, and the inverter adjusts pump speed to match demand. If a large EsyTank is needed, it serves the separate purpose of storing water.

There is no single solution that suits every site. A traditional booster set may be a good choice when its performance matches the installation and a straightforward, familiar arrangement is preferred. Esybox may be worth considering when a compact design and pump control that responds to changing demand are important. Compare the cost of the complete system, including installation and any required accessories.

How should you compare noise, cost and operation?

A traditional booster pump may be audible when it switches on and off, but the perceived noise depends on the model, installation and room. DAB describes Esybox as designed for quiet operation, with features including a water-cooled motor and components that help reduce vibration. In practice, noise is also affected by the base, mounting, pipework and room acoustics, so the result will not be identical in every installation.

Electronic controls can adjust pump operation to match current demand. This may be useful in a building where water use changes frequently, but it does not guarantee a specific saving. Energy use and total running costs depend on the water source, settings, operating hours, demand and condition of the installation.

When comparing costs, include more than the pump price: allow for the tank, controls, fittings, installation and any modifications. A traditional booster set comprises separate components that can be selected and serviced independently. Esybox integrates more functions in one unit, but still needs to be sized correctly, installed in accordance with the instructions and positioned with service access in mind.

What should you tell the installer before the design is prepared?

Note the water source, where and when the problem occurs, and how many outlets may be used at the same time. Gather information about the number of floors, the distance to the furthest outlet, pipe diameters and available plant-room space. If you have pressure measurements or details of a pump already operating in the installation, share those too.

Decide what matters most: more stable pressure under typical demand, serving more outlets at peak times, keeping a reserve of water or limiting the impact of a pump failure. This will help the installer assess whether a single pump is sufficient or whether a tank or Twin set should also be considered. For every option, the available water supply must be checked against the required flow rate.

Ask for a recommendation based on the actual operating conditions and a comparison of the complete configuration with an alternative. A good design takes account of the pump, water source, pipework, installation space, usage and servicing. Ask the installer to state the required flow rate and pressure at the most demanding outlet, and to explain how the system will perform at peak demand or with one pump operating in a Twin set. This helps match the system to the site rather than choosing by model name or building size alone.