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maintains plumbing, replacing water filters and defective valves and washers, replacing or mending broken pipes, and opening clogged drains. Assembles pipe sections, tubing and fittings, using couplings
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, hot and cold loops, humidifiers, boilers and chillers. Changes belts and filters, greases motors, visually checks compressors, pumps, other HVAC equipment, and building systems. Cleans and lubricates
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quality by testing weekly and cleaning pool components. Maintains water purification systems. Maintains outdoor fountains. Cleans water filters using hose, vacuum, and power washer. Tests water quality in
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filters, greases motors, visually checks compressors, pumps, other HVAC equipment, and building systems. Cleans and lubricates shafts, bearings, gears, and other parts of machinery. Cleans air handling
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insulating material. Maintains convectors by cleaning units and replacing filters and insulation as needed. Performs other preventive maintenance tasks such as changing belts and lubricating moving parts. May