WaterBoost – Advant
WaterBoost WB – Advant 1000 Variable Speed 2104310
- Established 1975
- Trusted by thousands of customers
The WaterBoost WB-Advant 1000 Variable Speed is a compact, self-contained high-performance boosting system for larger domestic and light commercial properties. A 1000-litre WRAS-approved UK-manufactured Advant tank (760mm W × 1225mm L × 1200mm H) houses the DAB Esybox Diver — a fully integrated variable speed pump that sits submerged inside the tank — delivering up to 100 l/min maximum at 5 bar maximum pressure, with WiFi and DConnect app.
The internal pump design creates a truly self-contained system — no external pump unit needed alongside the tank. The mains connects directly via the pre-fitted ¾” ball float valve. All interconnecting pipework supplied — no site assembly required. Designed for garages, plant rooms, and utility spaces where a clean, minimal footprint is important.
The UK-manufactured tank carries an outstanding 10-year warranty and the DAB Esybox Diver a 3-year warranty. Delivery is typically 1–2 working days.
WRAS tank & pump
Internal Diver pump
10yr tank warranty
UK-manufactured
1–2 day delivery
More about this product
The WaterBoost WB-Advant 1000 Variable Speed is a compact, self-contained boosting system for high-demand domestic and light commercial applications. A 1000-litre WRAS-approved UK-manufactured Advant tank (760mm W × 1225mm L × 1200mm H) houses the DAB Esybox Diver — a fully integrated variable speed pump that operates submerged inside the tank — delivering up to 100 l/min maximum at 5 bar maximum pressure, with WiFi via the DConnect app.
The internal Diver pump means no external pump unit is required alongside the tank — the entire system is contained within the Advant tank’s own footprint. The mains connects directly via the pre-fitted ¾” ball float valve. All interconnecting PVC pipework is supplied — no site assembly required. Designed for garages, plant rooms, and utility spaces where a self-contained installation is preferred.
The UK-manufactured tank carries an outstanding 10-year warranty and the Esybox Diver a 3-year DAB warranty. Delivery typically 1–2 working days.
Three large-capacity variable-speed systems. The WB-Advant 1000 Variable Speed is the cheapest, has the most storage, the highest peak flow (100 l/min), WiFi, a named 10-year tank warranty, and a compact internal pump design — at £1,362.75 vs £1,495 and £1,820 for the Powertank alternatives. Both Powertank options offer Fluid Category 4 compliance for installations where this is a specific requirement.
WB-Advant 1000 Variable Speed — the best-value choice at £1,362.75 + VAT. Cheapest of the three, highest peak flow (100 l/min), most storage (1000L), WiFi, 10-year tank warranty, named pump warranty, and the most compact footprint thanks to the internal Diver pump. 1–2 day delivery. The right choice for potable water applications.
Powertank UTILITY 750 Variable — choose for Fluid Category 4 compliance where 750L storage is sufficient. 80 l/min, 8L integral pressure vessel, external pump. £1,495 + VAT.
Powertank UTILITY 1000 Variable — choose for Fluid Category 4 compliance with 1000L storage. Same 80 l/min performance as the 750L version, external pump, no WiFi. At £1,820 + VAT it is £457.25 more than the WB-Advant with less peak flow and no named warranties.
How much does it cost and how quickly is it delivered?
What is the DAB Esybox Diver and how does it differ from the standard Esybox?
How is the pump serviced if it’s inside the tank?
What is the difference between this and the WB-Advant 1000 Esybox?
What warranties are included?
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DAB Esybox Diver PDFDownload
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Data Sheet PDFDownload
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Manual PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the WaterBoost WB – Advant 1000 Variable Speed 2104310. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a mains pressure boosting system?
A mains pressure boosting system increases the pressure and flow of water from the incoming mains supply into a property. It typically combines a pump and a storage or expansion tank, drawing water from the mains and delivering it to taps, showers and appliances at a stronger, more consistent pressure. They are used where the incoming mains is too weak to serve modern outlets reliably.
When do I need a mains booster pump?
You normally need a mains booster if static mains pressure is below 1.5 to 2 bar, if showers run weakly when other taps are open, or if combi boilers struggle to deliver hot water. Anglian Pumping recommends checking static pressure at the stop tap before specifying a system, then choosing a model rated for the number of bathrooms and outlets in the property.
What size mains booster do I need for my home?
Sizing depends on the number of bathrooms, the type of fittings and the static mains pressure. As a guide, a 1 to 2 bathroom property with combi boiler or single shower often needs 1.6 to 3 bar boost. A 2 to 3 bathroom property typically needs 3 to 4.5 bar with an integral break tank. Larger homes need a tank-and-pump system such as the DAB Esybox with Esytank or a Powertank set.
What is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.






