Coachmen concord 22le water pump

[larryhobby]

I want to put a computer mouse pad under my water pump to help make it make less noise. The space is very limited. Has anyone removed their's any help would be appreciate, i can get to the screws facing but unable to get to screws on back side of pump. i was wondering if the pump was put in before the walls as it is under the shower and only accesible through the side wall in storage bin. Thanks in advance sny help would be appreciated.