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Weatherization improvements include floor , ceiling , and wall insulation ; band joist ; water heating measures ( pipe wrap , water heater blankets , low-flow showerheads , and faucet aerators ) ; and air infiltration measures . After discovering a significant fish die-off in the lake , the Department dispatched a large mechanical aerator from its Rancho Cordova office to Heenan Lake to save the remaining trout . Aerate with a plugging aerator where needed to relieve compaction . Materials :14 - gauge wire or 3 tomato cages22-gauge wire1 / 4 " wire meshwire cutters2 pairs of plierssurface bonding cement * trowelrubber gloves * * large waterproof vessel for mixing cement ( wheelbarrow , large bucket , or mixing trough ) hand aerator ( small gardening implement with a handle and claw ) garden hose with nozzlelevel work surfaceconcrete or masonry paintlevelold carpet - optionalsilicone glue - optionalutility knife - optional * Quikwall and Surewall are two common brands of surface bonding cement . Most turf in the state will benefit from periodic aeration , either with a tine-type aerator or a power core aerator , which mechanically removes small plugs of soil . Although surface aerators can vary depending on the design of the system , most resemble a large circular brush . Measures include : compact fluorescent lights ; tank and pipe wrap ; low-flow showerheads ; kitchen aerators ; attic , wall , and floor insulation ; and duct repair . The aerators that activate the sand are arranged in a composition of three elements : a circle , a line and a dot , corresponding to the three kinds of rift zones that occur on earth : solitary volcanoes , fracture zones such as the one spreading on the island of Hawaii , and the ring dike that forms in the crater of a volcano as the central plug cools and then a new eruption occurs around the perimeter in a circle . Small aerators placed in certain bays such as a " marina bay " would decrease the quantity of organic bottom sediments . " Other items include chairs , sinks , carpet , overhead projectors , office furniture , tables , beds , typewriters , air conditioners , doors , student desks , television sets , microwave ovens , bicycles , refrigerators , gas-powered trimmers , vacuum cleaners , file cabinets , copiers , light fixtures , vehicles , a soil aerator and more .