Abstract: A diffused bubble aeration system for small scale water supplies includes a plurality of water holding vessels having water inlet and water outlet couplings operatively coupled in series for series flow of water through the successive vessels. The inlet and outlet openings are located substantially below the normal water level in the vessels, for example, substantially at the mid section of the respective vessels for equalization of volume and water level in the vessels. The series coupled vessels, barrels or drums comprise a first vessel having a supply water inlet coupling for coupling to a water supply and a last vessel or drum with a treated supply water outlet coupling to treated water supply water pump and pressurized treated water storage tank.

Abstract: A toe guard for use on a roller skate shoe having an extending toe stop adjacent the shoe toe, the guard being an elongated flexible member having a large diameter opening at one end of a dimension to receive the toe stop and of length to extend over the shoe toe and having small openings in the other end which receive shoe laces for holding the toe guard in position.