WAPRO WaBack DN110-200, Installation Instructions Manual

3

INTRODUKTION

HANDLING

The product is delivered securely fastened on a pallet and must not be tipped off the pallet. When unloading the product, 

use the lifting handles mounted on the chamber (Large) or alternatively, place slings around the chamber. The chamber 

must be placed on a flat surface during storage.

INSTALLATION

The chamber must be installed at the same angle as the fall of the pipe placed in the sloping part of the pipe since the 

product does not have built-in fall. Make sure that the flow direction of the chamber follows the flow direction of the pipe.

WaBack and WaBack Access should be installed as recommended according to the appropriate regulations in each 

country. The bottom of the product should be placed at a frost-free depth or a frost guard or similar should be used so 

that water does not freeze in the well.

EXTENDING THE HEIGHT OF THE CHAMBER

The height of the chamber is extended with the help of a Wavin riser DN425 or Wavin riser DN1000. Connect a Wavin 

reducing cone to the DN1000 riser if a DN640 cover is required.

MANHOLE COVERS

There are different manhole covers available.

Load-bearing (cast iron manhole cover) or non-load-bearing manhole cover (plastic) in sizes DN425 or DN640.

GROUNDWATER PRESSURE

If there is a risk of groundwater pressure, the product must be firmly anchored to prevent floating. This applies to WaBack 

Access Large. Use the handles on the product as anchoring points.

The maximum laying depth is 2.5 m from pipe invert to ground level.

RECYCLING

WaBack and WaBack Access Small/Large are made primarily of environmentally-friendly materials. Before disposing of the 

product, separate the components for recycling. See the table for how the parts are recycled.

Stainless Steel**

PE*

EDPM*

Polyurethane*

Fasteners

Chamber

Elbow

Floatation arm

*  Incinerate

** Metal recycling

OPTIONAL ACCESSORIES

ALARM

Wired and wireless water level alarms are available for purchase separately. The alarm ensures extra protection in the event 

of raised water levels. The alarm senses when the water level is over the expected level and emits both a light and sound 

signal. The alarm sensor should be mounted in the chamber and the receiver unit should be installed in a building, service 

facility or similar. The connection for the wireless alarm between the sender and receiver must be tested before the alarm 

is put into service to ensure the signal is not disturbed by any nearby building structure.

RISER

Wavin Tegra: WaBack Access Small DN425. WaBack DN600. WaBack Access Large DN1000

SHUT-OFF PLATE - ACCESS ONLY

The shut-off plate enables the product to function as a shut-off valve. This function enables the pipe to be closed off for 

service and maintenance.

REDUCER

Tegra DN1000 Cone

MANHOLE COVER

Manhole cover: WaBack Access Small DN425, WaBack DN640, WaBack Access Large DN1000