Pumping tower support system and method of use

A support system for supporting a support tower on a floor structure of a building, the support tower extending through an opening in the floor structure, the support system comprising:

• a set of support brackets pivotably mounted relative to a support framework, the support brackets being supportably engageable with a first floor structure in a first supporting position, and being freely swingable and movably engageable with a second floor structure as the support framework is moved relative to the second floor structure enabling the support brackets to be supportably engageable with the portion of the support framework and the second floor structure in a second supporting position,
• wherein the support framework includes a series of vertical legs and vertical racks, and the support brackets are each pivotably mounted on a horizontal axis between the vertical legs and the vertical racks of the support framework,
• wherein each support bracket is swingable about a pivot pin having a cylindrical section and an opposite end provided with a face plate having a tab and a handle,
• wherein the pivot pin extends through a hole formed in the vertical leg, a mounting aperture formed in the support bracket and an opening formed in the vertical rack,
• wherein the vertical rack has a stop attached thereto adjacent the opening,
• wherein the handle and the face plate are rotatable to engage the tab behind the stop, and a retainer is passed through the face plate and the stop to lock the pivot pin in position.