Devices and methods for moving, removing and/or installing one or more components of a treatment unit

A method of installing a component in a precise location in a water or wastewater treatment unit comprising the steps of:

• (a) connecting a flexible member to a component to be installed in a water or wastewater treatment unit;
• (b) positioning the component to be installed in a water or wastewater treatment unit on a substance in the water or wastewater treatment unit;
• and,
• (c) directing fluid through the substance to fluidize only a portion of the substance causing the component to move downwardly and rest on an upper surface of a nonfluidized portion of the substance.

A method comprising the steps of:

• (a) connecting a component of a water or wastewater treatment unit to a flexible piping connected to a fluid source;
• and,
• (b) raising the component from an operating position in the water or wastewater treatment unit to a position where the component can be accessed while the flexible piping is connected to said component and said fluid source;
• (c) prior to raising the component, connecting at least one float to the component wherein the component is an air grid of a water treatment unit having a granular media filter bed and a portion of the air grid is disposed in the granular media filter bed;
• and,
• (d) raising the component includes directing a liquid into the water treatment unit to cause the float and the component to move upwardly and raise the component out of the granular media filter bed while the flexible piping is connected to the component and the fluid source.