Can i use a school ID to get in? Also does a adult have to sign up for me?

Here's the deal - everyone needs a DC ID card (from dmv, dcps, dcOne,etc) to access the pool for free. If you have an out of state friend with you they are supposed to require a paid guest pass purchased in advance, during business hours. Don't worry about that though, the pool staff just wants everyone to have an enjoyable and safe visit... Flash that Maryland, VA or North Dakota ID, smile, say thank you, and walk right on in... This is a really great pool for Everybody to enjoy together. See you this summer!

Yes and no