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 »
Close window
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
€324.97 *
excl. VAT: €264.20 VAT: €60.77 *
Mains Water Top Up Set with ¾" solenoid-valve WISY Potable Water Feed Set- ¾" - 20 m cable
€511.68 *
excl. VAT: €416.00 VAT: €95.68 *
Mains Water Top Up Set with 1" solenoid-valve WISY Potable Water Feed Set- 1" - 20 m cable
€717.83 *
excl. VAT: €583.60 VAT: €134.23 *
Mains Water Top Up Set with 1½" solenoid-valve WISY Potable Water Feed Set- 1½" - 20 m cable
€1,637.75 *
excl. VAT: €1,331.50 VAT: €306.25 *
Mains Water Top Up Set with 2" solenoid-valve WISY Potable Water Feed Set- 2" - 20 m cable
€2,157.79 *
excl. VAT: €1,754.30 VAT: €403.49 *
WISY ½“ Open Potable Water Outlet WISY ½“ Open Potable Water Outlet
€218.08 *
excl. VAT: €177.30 VAT: €40.78 *
WISY 1“ Open Potable Water Outlet WISY 1“ Open Potable Water Outlet
€592.61 *
excl. VAT: €481.80 VAT: €110.81 *
WISY 1½" Open Potable Water Outlet WISY 1½" Open Potable Water Outlet
€1,512.53 *
excl. VAT: €1,229.70 VAT: €282.83 *
No results were found for the filter!
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.
€218.08 *
excl. VAT: €177.30 VAT: €40.78 *
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.
€324.97 *
excl. VAT: €264.20 VAT: €60.77 *
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.
€386.47 *
excl. VAT: €314.20 VAT: €72.27 *
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.
€511.68 *
excl. VAT: €416.00 VAT: €95.68 *
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.
€592.61 *
excl. VAT: €481.80 VAT: €110.81 *
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.
€717.83 *
excl. VAT: €583.60 VAT: €134.23 *
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.
€1,512.53 *
excl. VAT: €1,229.70 VAT: €282.83 *
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.
€1,637.75 *
excl. VAT: €1,331.50 VAT: €306.25 *
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.
€2,032.58 *
excl. VAT: €1,652.50 VAT: €380.08 *
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.
€2,157.79 *
excl. VAT: €1,754.30 VAT: €403.49 *
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.
€111.81 *
excl. VAT: €90.90 VAT: €20.91 *
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.
€56.09 *
excl. VAT: €45.60 VAT: €10.49 *
Viewed