United had to come from behind for the second week on the bounce as they earned another point down by the seaside.
Blackpool took a first-half lead into the break, but the Blues kept going and they were back on terms with just over 15 minutes left to play when they levelled things up from the spot, courtesy of Charlie Watt.
Youth boss Mark Birch said: "With the team we had out, made up mostly of first years, we come away feeling very pleased with the performance.
"Blackpool took the lead but we created a hatful of chances yet again. Overall we deserved the goal, and the lads have to take credit for working very hard."
More details to follow.