A mounting assembly comprising a support member having a leg and a foot configured to be coupled to the trap; a clamping member including a bore and a distal end pivotally coupled to the leg of the support member; and an adjusting member extending through an opening in a wall of the pedestal, through an opening in the leg of the support member, and into the bore of the clamping member; wherein adjustment of the adjusting member pivots the clamping member relative to the support member to change a pitch of the adjusting member such that the adjusting member imparts a load into both the support member and the wall of the pedestal.