Mains Water Top-Up for Rainwater Harvesting Systems

Automatic mains water top-up is a necessary secondary backup supply to feed mains-water to the rainwater storage tank during prolonged dry periods, ensuring continuous automatic operation of the rainwater harvesting unit.

The WISY Open Potable Water Outlet operates with a solenoid-valve triggered by a float-switch inside the tank. The Open Potable Water Outlet must be installed inside (dry conditions) and is in accordance with European, German and UK Water Regulations (air-gap) - DIN EN 1717, DIN 1989.

The Open Potable Water Outlet is available in different sizes depending on the tank size and top-up volume required for sufficient mains water backup supply.

Automatic mains water top-up is a necessary secondary backup supply to feed mains-water to the rainwater storage tank during prolonged dry periods, ensuring continuous automatic operation of the... read more »
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Mains Water Top-Up for Rainwater Harvesting Systems

Automatic mains water top-up is a necessary secondary backup supply to feed mains-water to the rainwater storage tank during prolonged dry periods, ensuring continuous automatic operation of the rainwater harvesting unit.

The WISY Open Potable Water Outlet operates with a solenoid-valve triggered by a float-switch inside the tank. The Open Potable Water Outlet must be installed inside (dry conditions) and is in accordance with European, German and UK Water Regulations (air-gap) - DIN EN 1717, DIN 1989.

The Open Potable Water Outlet is available in different sizes depending on the tank size and top-up volume required for sufficient mains water backup supply.

Top seller
Mains Water Top Up Set with ½" solenoid-valve WISY Potable Water Feed Set - ½" - 20 m cable
€350.55 *
excl. VAT: €285.00 VAT: €65.55 *
Mains Water Top Up Set with ¾" solenoid-valve WISY Potable Water Feed Set- ¾" - 20 m cable
€566.42 *
excl. VAT: €460.50 VAT: €105.92 *
Mains Water Top Up Set with 1" solenoid-valve WISY Potable Water Feed Set- 1" - 20 m cable
€800.12 *
excl. VAT: €650.50 VAT: €149.62 *
Mains Water Top Up Set with 1½" solenoid-valve WISY Potable Water Feed Set- 1½" - 20 m cable
€1,808.72 *
excl. VAT: €1,470.50 VAT: €338.22 *
Mains Water Top Up Set with 2" solenoid-valve WISY Potable Water Feed Set- 2" - 20 m cable
€2,362.22 *
excl. VAT: €1,920.50 VAT: €441.72 *
WISY ½“ Open Potable Water Outlet WISY ½“ Open Potable Water Outlet
€232.47 *
excl. VAT: €189.00 VAT: €43.47 *
WISY 1“ Open Potable Water Outlet WISY 1“ Open Potable Water Outlet
€650.67 *
excl. VAT: €529.00 VAT: €121.67 *
WISY 1½" Open Potable Water Outlet WISY 1½" Open Potable Water Outlet
€1,659.27 *
excl. VAT: €1,349.00 VAT: €310.27 *
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WISY ½“ Open Potable Water Outlet
WISY ½“ Open Potable Water Outlet
WISY mains-water top-up unit for domestic rainwater harvesting systems. Equipped with ½“ solenoid-valve for top-up volumes up to 2.64m³/h @ 3bar mains-water pressure.
€232.47 *
excl. VAT: €189.00 VAT: €43.47 *
Mains Water Top Up Set with ½" solenoid-valve
WISY Potable Water Feed Set - ½" - 20 m cable
Automatic mains-water top-up set for domestic rainwater harvesting systems. Includes ½" solenoid-valve & float-switch with 20m cable for top-up volumes up to 2.64m³/h @ 3bar mains-water pressure.
€350.55 *
excl. VAT: €285.00 VAT: €65.55 *
WISY ¾“ Open Potable Water Outlet
WISY ¾“ Open Potable Water Outlet
WISY mains-water top-up unit for commercial rainwater harvesting systems. Equipped with ¾““ solenoid-valve for top-up volumes up to 6.48m³/h @ 3bar mains-water pressure.
€416.97 *
excl. VAT: €339.00 VAT: €77.97 *
Mains Water Top Up Set with ¾" solenoid-valve
WISY Potable Water Feed Set- ¾" - 20 m cable
Automatic mains-water top-up set for commercial rainwater harvesting systems. Includes ¾" solenoid-valve & float-switch with 20m cable for top-up volumes up to 6.48m³/h @ 3bar mains-water pressure.
€566.42 *
excl. VAT: €460.50 VAT: €105.92 *
WISY 1“ Open Potable Water Outlet
WISY 1“ Open Potable Water Outlet
WISY mains-water top-up unit for commercial rainwater harvesting systems. Equipped with 1“ solenoid-valve for top-up volumes up to 8.64m³/h @ 3bar mains-water pressure.
€650.67 *
excl. VAT: €529.00 VAT: €121.67 *
Mains Water Top Up Set with 1" solenoid-valve
WISY Potable Water Feed Set- 1" - 20 m cable
Automatic mains-water top-up set for commercial rainwater harvesting systems. Includes 1" solenoid-valve & float-switch with 20m cable for top-up volumes up to 8.64m³/h @ 3bar mains-water pressure.
€800.12 *
excl. VAT: €650.50 VAT: €149.62 *
WISY 1½" Open Potable Water Outlet
WISY 1½" Open Potable Water Outlet
WISY mains-water top-up unit for large-scale commercial rainwater harvesting systems. Equipped with ½“ solenoid-valve for top-up volumes up to 20.52m³/h @ 3bar mains-water pressure.
€1,659.27 *
excl. VAT: €1,349.00 VAT: €310.27 *
Mains Water Top Up Set with 1½" solenoid-valve
WISY Potable Water Feed Set- 1½" - 20 m cable
Automatic mains-water top-up set for large-scale commercial rainwater harvesting systems. Includes 1½" solenoid-valve & float-switch with 20m cable for top-up volumes up to 20.52m³/h @ 3bar mains-water pressure.
€1,808.72 *
excl. VAT: €1,470.50 VAT: €338.22 *
WISY 2" Open Potable Water Outlet
WISY 2" Open Potable Water Outlet
WISY mains-water top-up unit for industrial rainwater harvesting systems. Equipped with 2“ solenoid-valve for top-up volumes up to 34.92m³/h @ 3bar mains-water pressure.
€2,212.77 *
excl. VAT: €1,799.00 VAT: €413.77 *
Mains Water Top Up Set with 2" solenoid-valve
WISY Potable Water Feed Set- 2" - 20 m cable
Automatic mains-water top-up set for industrial rainwater harvesting systems. Includes 2" solenoid-valve & float-switch with 20m cable for top-up volumes up to 34.92m³/h @ 3bar mains-water pressure.
€2,362.22 *
excl. VAT: €1,920.50 VAT: €441.72 *
Float-Switch with 20m cable for Mains Water Top-Up | Clamp & Lever
WISY Float-Switch | 20m cable | for Mains Water...
Electric float level switch (250V) equipped with 20 metre cable (3 core) including protective earth conductor (PE) to fill a tank. Includes stainless-steel clamp & lever for minimum mains water top-up voume.
€129.15 *
excl. VAT: €105.00 VAT: €24.15 *
Float-Switch with 3m cable for Mains Water Top-Up | Clamp & Lever
WISY Float-Switch | 3m cable | for Mains Water...
Electric float level switch (250V) equipped with 3 metre cable (3 core) including protective earth conductor (PE) to fill a tank. Includes stainless-steel clamp & lever for minimum mains water top-up voume.
€67.65 *
excl. VAT: €55.00 VAT: €12.65 *
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