WaterBoost WB – Advant 500 Variable Speed 2103310

The WaterBoost WB-Advant 500 Variable Speed is a compact, self-contained boosting system for high-demand domestic and light commercial applications. A 500-litre WRAS-approved UK-manufactured Advant tank (650mm W × 870mm L × 1200mm H) houses the DAB Esybox Diver — a fully integrated variable speed pump that operates submerged inside the tank — delivering up to 110 L/min maximum at 5.5 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 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.

Which should I choose?

WB-Advant 500 Variable Speed — choose for the highest peak flow (110 L/min), WiFi via DConnect, and the cleanest, most compact installation footprint thanks to the internal Diver pump. No external pump unit alongside the tank.

WB-Advant 500 Esybox — choose for the highest max pressure (6.5 bar), the quietest pump (43 dB(A)), and full pump accessibility for servicing without tank disturbance. WiFi with H2D, Google Home and Alexa.

WB-Advant 500 Mini3 — choose for the most cost-effective option where 50 L/min @ 3 bar is sufficient. Same 500L Advant tank, smaller external pump.

How much does it cost and how quickly is it delivered?

Please contact us via WhatsApp or phone for current pricing. Delivery is typically 1–2 working days.

What is the DAB Esybox Diver and how does it differ from the standard Esybox?

The Esybox Diver is a submersible version of the DAB Esybox system — designed specifically to operate submerged inside a water storage tank. Unlike the standard Esybox (which sits externally alongside the tank), the Diver is installed inside the tank, making the system entirely self-contained within the tank’s own footprint. Performance is up to 110 L/min max at 5.5 bar maximum, with WiFi via the DConnect app.

How is the pump serviced if it’s inside the tank?

The Esybox Diver is accessed via the Advant tank’s inspection lid at the top of the tank. Servicing requires the tank to be isolated and the water level reduced to access the pump. This is a straightforward process for a qualified engineer. If external pump accessibility without tank involvement is important to you, the WB-Advant 500 Esybox uses an external pump.

What is the difference between this and the WB-Advant 500 Esybox?

Both use the same 500L Advant tank with 10-year warranty. The key differences are the pump type and position. This system uses the Esybox Diver (internal) — up to 110 L/min max, 5.5 bar max, WiFi/DConnect, compact self-contained footprint. The WB-Advant 500 Esybox uses the external Esybox — 80 L/min @ 3 bar, 6.5 bar max, 43 dB(A), WiFi/H2D/Google/Alexa. Choose the Diver (this product) if footprint compactness and 110 L/min peak flow are priorities; choose the Esybox if pump accessibility and 6.5 bar max pressure matter more.

Is there a 1000L version?

Yes — the WB-Advant 1000 Variable Speed provides 1000L storage with the same Esybox Diver pump for very high-capacity or commercial requirements.

What warranties are included?

10 years on the WRAS Advant tank and 3 years DAB warranty on the Esybox Diver pump, when purchased from Anglian Pumping Services.