What are these, Gnats?

[IceShadow]

Hi! New to the forum, new house and first time ever owning a pool. Got it open,
Looks pretty good, but I keep getting these things in my pool, sometimes 6-10 in a day. Any idea what they are?

 

[Texas Splash]

I wouldn't say it's a gnat. Looks like some sort of worm or something. I'm not a bug expert. Maybe someone other forum member will have an idea.

 

[Wobblerlorri]

It's a millipede. They like dark, warm, moist places, like pumps with leaks or well-tended landscaping. And, apparently, pools.