IIRC it pulls from natural surface waters and may even be a flow through design. It’s not a closed system like a pool. So it will always be getting water from the Potomac or other local sources which are already heavily polluted, and algae and algae like life such as dinoflagellates will instantly bloom with very minor pollution, especially when competing biofilms on the bottom and sides were just removed. Also, I know marine algae is notoriously difficult to filter out by mechanical means, so I assume similar for aquatic. I think that unless it get turned into a closed loop chlorinated swimming pool, the “best” it will ever be is a natural looking reflecting pond for the ducks and geese - and I’m okay with that, I’ll bet the ducks and geese prefer it too.
IIRC it pulls from natural surface waters and may even be a flow through design. It’s not a closed system like a pool. So it will always be getting water from the Potomac or other local sources which are already heavily polluted, and algae and algae like life such as dinoflagellates will instantly bloom with very minor pollution, especially when competing biofilms on the bottom and sides were just removed. Also, I know marine algae is notoriously difficult to filter out by mechanical means, so I assume similar for aquatic. I think that unless it get turned into a closed loop chlorinated swimming pool, the “best” it will ever be is a natural looking reflecting pond for the ducks and geese - and I’m okay with that, I’ll bet the ducks and geese prefer it too.