We have had the Stamford disc diffusers installed in our two 450,000 gallon sludge holding basins for nearly five years and we have never had a problme with them. We also see adequate mixing and desired performance.The basins are inspectd periodically and we have not had to replace any of the modules to date.
Jerry Basham- Chief Operator North WWTP, Henderson Water Utility, Henderson, KY
