Independent rainhead testing was carried out by the AHSCA Research Foundation (AHSCARF) at the purpose built National Research Drainage Facility at the University of the Sunshine Coast, Queensland. 

All Dam Buster rainheads are AHSCARF certified products and independent Test Certificates for each size can be downloaded on the right. More information about the AHSCARF can be found at  https://www.ahscaresearch.com.au

NB: These certificates show images of rainheads with either round or rectangular secondary front overflows, however all testing conducted by the AHSCARF and referenced in these certificates was carried out with these secondary front overflows fully blocked. The AHSCARF testing also confirmed these additional overflows were not necessary and hence have since been deleted from all later Dam Buster production. The test certificates therefore apply to all Dam Buster rainhead products regardless of series, date of manufacture and/or whether or not they have a secondary front overflow device fitted.