Abstract: A swimming pool skimmer maintenance apparatus (10) includes an elongate tubular handle (12) having a hook end (14) and an opposed sealing end (16). The sealing end includes a sealing structure such as a spherical ball (116) defining a sealing surface effective to seal a skimmer suction port to prevent a flow of water through the skimmer suction port. The hook end supports a metal wire hook (32) which extends from the handle and which is adapted to lift a debris collection basket, a skimmer diverter or a skimmer lid present at the skimmer. The apparatus is also useful for safely probing the skimmer for animals or insects.

Abstract: A clamp pin handle cover for covering a pin handle of a mechanical clamp. The clamp pin handle cover includes an elongate cover body defining a slot which is adapted to receive the clamp pin handle therein. In one embodiment the clamp pin handle cover is adapted for use with a clamp having a fixed pin handle. In a second embodiment the clamp pin handle cover is adapted for use with a clamp having a translating pin handle with the translating pin handle disposed at its mid position or a translated position.

Abstract: A refractory furnace (10) is constructed to facilitate repair of worn or damaged refractory portions while the furnace is maintained at near-operating temperature. A sidewall (40) of the refractory furnace is comprised of a plurality of modular sections (85) each of which includes a refractory lining (87). One or more modular sections may be selectively replaced when becoming worn or damaged. Replacement is accomplished by external access and removal of the worn or damaged modular sections.