Great history on the development of the @sludgehammergroupltd and the process of getting NSF 40, IMO-MARPOL and IAPMO certification for wastewater treatment. ✅👷🏻♂️🇺🇸 #digginit #digitexcavating #secondarytreatment #onsiteprocessing #nsf40 #IAPMO #septicsystem #cleaneater #protectingtheenvironment @pumpthatseptic (at Cassopolis, Michigan) https://www.instagram.com/p/CTCp8morVv_/?utm_medium=tumblr













