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WaBack® Access

WaBack Access has all the benefits of the WaBack non-return chamber. WaBack Access is a complete solution with WaBack detachable from ground level for straightforward operation and easy maintenance. The product is used as protection against basement flooding. It is always open for flow, as this minimises the risk of something getting stuck. An open flow is always preferable for basements, as they have poor slopes. The product is used to advantage in extremely polluted water, and can thus be used in both sewer and surface-water systems. The flow area is completely open, to ensure blockages are prevented. 


WaBack® Access
Technical specifications

The WaBack access chamber is supplied with a pre-installed WaBack module with a 1.8 m extension rod. A longer rod is available if so desired. The chamber is recessed into pipes using sleeves or flexible couplings. The product is ready for use upon delivery.  

The product is available as standard for pipes from NPS 4" in NPS 17" and NPS 4"- NPS 8" in Large.
We also customise in accordance with the customer's requirements.  


Download technical specification

We at Wapro believe in opportunities. By being an open organization, we learn from our customers and share our experiences. Below you will find all the information about our products and also other useful and interesting information. Contact us if you are missing something.

Download files
Nominal Pipe Size
28.70 lb
16.70 in
Chamber Diameter
16.70 in
Invert-Ground min.
23.60 in
Closing Head
3.90 inH2O
Construction length
28.20 in


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Contact Charlie Sullivan for more information
Charlie Sullivan
Territory Sales Manager (GA, VA, NC, SC)

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