A rainwater system designed with WISY products requires minimal maintenance and never needs replacing.
With a WISY filter, you'll never clean your tank again.


OVERFLOW DIAGRAM.jpg

Overflow Protection

Tank overflow is essential for a healthy water environment. The WISY overflow devices will siphon small, floating particulate off the surface of the water, while also providing a path for excess incoming rainwater to overflow to. These overflow devices also protect backflow from storm drains.

WISY 4" Multifunction Overflow Device
295.00

To prevent backup in the system during heavy rains, the storage tank should always include an overflow protection device.  The WISY overflow device has a flapper valve which allows water to overflow but protects water quality in the cistern with backflow prevention and vermin protection.  The overflow device also contains an angled opening to provide skimming of small buoyant debris, such as pollen, on the water surface.

WISY Part Number: US 1002

Quantity:
Add To Cart
WISY 8" Multifunction Overflow Device
951.00

To prevent backup in the system during heavy rains, the storage tank should always include an overflow protection device.  The WISY overflow device has a flapper valve which allows water to overflow but protects water quality in the cistern with backflow prevention and vermin protection.  The overflow device also contains an angled opening to provide skimming of small buoyant debris, such as pollen, on the water surface.

WISY Part Number: US 2000

Quantity:
Add To Cart