Direct-drive – Compact and more affordable but with extended (4+ hours/day) non-stop use can be prone to overheating the engine.There are 2 different ways of driving your pressure washer pump: direct-drive and belt-drive. Gasoline should only be stored for 3-4 months in your garage in a Jerry can. Use fresh gasoline if you haven’t used your machine since last season. Seasonal weather change causes stored gasoline to deteriorate, which can cause ignition issues within the combustion chamber of the pressure washer engine. Storage Of Gasolineīefore you store your pressure washer for the winter be sure to empty the gas tank or add stabilizer to it. The frame is welded steel and should incorporate vibration isolator engine mounting. The bigger more powerful units take the wheelbarrow stance to make more room for the bigger engine and pump. Think about it: It’s why your dishwasher uses such hot water to clean the dishes. Hot water easily rips through tough stains and breaks the soild bonds to clean with ease. Hot water power washers come with a heating element / boiler to heat the water up 140 F (50 C) above its current temp. Engines with the electric starter are more expensive. Small internal combustion engines come with either electric or recoil starters (or both). 3100 PSI x 3 GPM = 9300 Cleaning Power Units.The pump is typically described by flow rate in gallons per minute.Īn example of 2 units with the same Cleaning Power but different PSI and GPM: More powerful the engine the higher the PSI. Bigger the number, the more powerful the engine. The measurement describes the volume of the combustion chamber. Gas power washer engines’ size is defined in cubic centimeters (cc). Cleaning Power = Water Pressure (PSI) x Water Flow Rate (GPM).How We Test, Review and Recommend Pressure Washers.
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