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
€344.40 *
excl. VAT: €280.00 VAT: €64.40 *
Mains Water Top Up Set with ¾" solenoid-valve WISY Potable Water Feed Set- ¾" - 20 m cable
€547.60 *
excl. VAT: €445.20 VAT: €102.40 *
Mains Water Top Up Set with 1" solenoid-valve WISY Potable Water Feed Set- 1" - 20 m cable
€766.54 *
excl. VAT: €623.20 VAT: €143.34 *
Mains Water Top Up Set with 1½" solenoid-valve WISY Potable Water Feed Set- 1½" - 20 m cable
€1,741.93 *
excl. VAT: €1,416.20 VAT: €325.73 *
Mains Water Top Up Set with 2" solenoid-valve WISY Potable Water Feed Set- 2" - 20 m cable
€2,292.97 *
excl. VAT: €1,864.20 VAT: €428.77 *
WISY ½“ Open Potable Water Outlet WISY ½“ Open Potable Water Outlet
€231.24 *
excl. VAT: €188.00 VAT: €43.24 *
WISY 1“ Open Potable Water Outlet WISY 1“ Open Potable Water Outlet
€628.53 *
excl. VAT: €511.00 VAT: €117.53 *
WISY 1½" Open Potable Water Outlet WISY 1½" Open Potable Water Outlet
€1,603.92 *
excl. VAT: €1,304.00 VAT: €299.92 *
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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.
€231.24 *
excl. VAT: €188.00 VAT: €43.24 *
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.
€344.40 *
excl. VAT: €280.00 VAT: €64.40 *
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.
€409.59 *
excl. VAT: €333.00 VAT: €76.59 *
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.
€547.60 *
excl. VAT: €445.20 VAT: €102.40 *
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.
€628.53 *
excl. VAT: €511.00 VAT: €117.53 *
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.
€766.54 *
excl. VAT: €623.20 VAT: €143.34 *
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.
€1,603.92 *
excl. VAT: €1,304.00 VAT: €299.92 *
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.
€1,741.93 *
excl. VAT: €1,416.20 VAT: €325.73 *
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.
€2,154.96 *
excl. VAT: €1,752.00 VAT: €402.96 *
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.
€2,292.97 *
excl. VAT: €1,864.20 VAT: €428.77 *
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.
€118.57 *
excl. VAT: €96.40 VAT: €22.17 *
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.
€59.53 *
excl. VAT: €48.40 VAT: €11.13 *
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