A wall mounting system is described having a wall mounting bracket to be rigidly secured to a wall, a pair of water bottle filling station-mounted brackets to be rigidly secured to a water bottle filling station, and a pair of bracket adaptors, each configured to be secured to a respective one of the water bottle filling station-mounted brackets and to the wall mounting bracket. The system can include one or more springs. The system allows an operator to properly install a water bottle filling station on uneven walls or damaged or improperly installed wall mounting brackets.