What do you do when your coagulation tank springs a leak, you need to check a valve, or you simply want to see what may be clogging up the bottom of your sedimentation basin?Typically, the answer is to call out scuba divers or drain the whole tank. However, one alternative is slowly making the jump from the fish farm industry to the municipal water and wastewater treatment plant crowd — remotely operated underwater vehicles (ROVs). One easily handled option, manufactured by Deep Trekker, drew a crowd to the company’s demonstration tank on the floor of the 2016 Water & Wastewater
