@PotomacCyclist 56582 wrote:
The Hains Point “sprinklers” are more like high-powered water jets. You need body armor (or a sturdy helmet) to protect your head.
The Potomac River is muddy but it’s relatively clean (except after heavy rainstorms, when the storm sewers overflow and mix with the sanitary sewers). I’ve done several triathlon race swims in the river and no glowing skin or new appendages yet. I’ve even (accidentally) gulped down some of the water during those races. But I wouldn’t recommend guzzling Potomac River water. Not very tasty.
I swam in the potomac once – just north of the 3 sisters, but from a boat. It didn’t feel that dirty, but the curent can be pretty strong, I would not swim from the shore anywhere north of roosevelt bridge (too fast moving) or anywhere south of there the 14th – due to sewange and other runnoff. I guess it mostly depends on how fast moving and how much rain we have had.