I will tell you that from personal experience, replacing the fuse alone will not work for more than 1 to 2 loads if that. The fuse usually pops when the switch itself becomes older and starts to fail or arc. This will cause any new fuse you put in to fail and it will wind up costing more money in the long run. I hope this is the information you were wanting.
Install the unit with the lid close. push it til it clicks and the let of just a little. Tighten the switch in place. Open the lid. The switch should click with the lid up about 3 inches. This is the perfect setting.
You probably knocked one of the wires off of the water valve. You will need to pull the top back off and look at the valve and reattach the wire that is loose. I will be at Sea World for most of the day buy I will be able to answer any other questions later.