Macaulay Gray retained his place in the starting line up after a confident display at Midhurst & Easebourne, while Jason Taylor and Ben Dartnall returned after missing the Senior Cup victory.
It would be Shoreham who took the lead with the first meaningful attack of the game as Jamie Craddock’s square ball from wide evaded everybody except Carl Dunk who slammed the ball home from close range.
United levelled just a minute later though, as Jason Taylor evaded two Shoreham defenders to slam a left footed effort into the far.
Taylor could have given United the lead as a weak goal kick from Tom Betts allowed him to run at the home defence, but he could only drag his effort just wide of the post.
The Mussels retook the lead in the 31st minute as Alex fair clipped the ball past Adam Sargent following a through ball by Ross Myers
Sargent had to be alert on the stroke of half time as Justin Gregory hit a snap shot from the edge of the area, but the United 'keeper was equal to the effort.
Trailing in a league fixture at half time for the first time this season, United needed a response, and whatever Simon Rowland said during the interval did the trick.
A Wes Tate corner found its way to Dan Pollard, who was allowed time to slot home through a crowd of players to make it 2-2 with five minutes of the half played
Two minutes later, the game threatened to boil over as Bailo Camara and Jason Edwards were both dismissed after clashing in the centre of the pitch.
Taylor brought out the best in Betts with a well driven effort that the 'keeper managed to hold on to, before Fair rattled the post for the Musselmen as both sides had to settle for a share of the points.