Abstract: A single-use centerbody assembly for a valve includes: a centerbody, including: a process surface and a back surface; at least one inlet orifice disposed in the centerbody, and at least one outlet orifice disposed in the centerbody separate from the at least one inlet orifice; a peripheral surface extending between the process surface and the back surface; an inlet fitting extending from the peripheral surface; and an outlet fitting extending from the peripheral surface; a control diaphragm facing the process surface, a perimeter of the control diaphragm being bonded to the centerbody so as to define a seal that blocks the passage of fluid; and a backside diaphragm positioned facing the back surface, a perimeter of the backside diaphragm being bonded to the centerbody so as to define a seal that blocks the passage of fluid.

Abstract: A dock trailer for animal dog jumping and associated method, including one or more of the following: placing a pool on a pallet; securing the pool to the pallet; aligning the pallet with the trailer; extending a boom from the trailer; extending a tether from the trailer or the boom; attaching the tether to the pallet; starting to pull the tether towards the trailer; pulling the pallet up a ramp of the trailer; raising the pallet to a level wherein a bottom surface of the pallet is above a top surface of the trailer; retracting the boom into the trailer; aligning the pallet with a receptacle in the trailer; lowering the pallet into the receptacle of the trailer; receiving the pallet in the receptacle of the trailer; stopping to pull the tether towards the trailer; securing the pallet in the trailer receptacle; and securing the pallet to the trailer.