It's not a fault if you hit the net during a serve and it doesn't go over in Pickleball. However, if you're serving and the ball hits the net but still gets to the correct service area, you still have to repeat the serve.
You reserve if it hits the net and lands in play. If you hit the net on a serve and goes out or in the no volley zone, (kitchen) then its a fault and no reserve. for more question visit http://www.pickleballplanet.com