The earlier hose reels leaked due to bad clamps where the hose connected to the reel, easy fix if that is the same problem with the newer models. The check vavle from Home Depot that was just posted a couple of days ago will probably fix the pump cycling.
http://www.irv2.com/forums/f278/2017...ml#post3982723
Scroll down a couple of more post and Paul included a picture of where it goes.
Pull the hose off of the reel, find where the leak is...one trip to Home Depot or Lowe's should get the parts to fix both.