 There really aren't very many water treatment problems that aren't already solved. The key for me is that a lot of them are solved using Victorian era technologies which are functional but require a lot of operator attention, chemicals, long residence times, and they're prone to failure. And so where new innovation, new technology really plays a role in being able to do a significantly better, cheaper, smaller footprint with more automation, which can provide for better safety, better public health protection because when the water quality changes the advanced technologies can handle it. There's a lot of innovation in terms of the developments of sensor technologies. There's a lot of innovation around how you process this large volume of data that we're now generating, things like AI, machine learning, etc. And then there's a lot of innovation around smart devices, this integration of IT and OT. And that allows you to almost predict what might happen in the future, so you're pre-empting a pipe burst as opposed to responding to a pipe burst. The type of technological solutions that work best in my experience are technologies that have been developed from the start with end users.