Abstract: A device for cleaning submergible surfaces includes a mandrel having a handle at a proximal end and a connector at a distal end. The handle can be removably mounted to an air tool. A cleaning tip holder has an opening at a distal end leading into an interior space. The cleaning tip holder can be connected with the mandrel connector and can be removably retained therewith. A cleaning tip includes a generally rectangular element having beveled front and side edges and can be removably retained partially within the cleaning tip holder interior space. In use, a cleaning tip is mounted in the cleaning tip holder interior space, and that combination is mounted to the mandrel connector. The mandrel handle is affixed to an air tool having an outlet hose, which, when activated, produces a reciprocating action in the device, creating a scrubbing action with the cleaning tip.

Abstract: The present invention comprises a pool covering system for a pool The pool has a side rail surrounding the top perimeter thereof. The pool covering system includes a pool covering tarp; and a tarp support structure for the pool covering tarp. The support structure supports the pool covering tarp above the surface of the pool in a tent like manner. The support structure includes a plurality of anchoring structures attached to the side rail, each anchoring structure includes at least one connector tab protrusion which has at least one fastener opening therein. The support structure also has a plurality of elongated structural support members having opposed end portions and at least one connector tab protrusion extending from or attached to each of the opposed end portions. The connector tab protrusions have at least one fastener opening therein.