What is Pressure Washing?
To clean your pavement effectively, then you should consider using a power washer that has a pressure rating of not less than 400 psi with a flow rate not exceeding 5 gallons each minute. It is good to wash away stains that may seem hard to remove or may end up consuming time when washing them, hence it is advisable that you increase your pressure rating to make your work simpler.
Most contractors advise other pavement cleaners to use a rate of 300 psi while cleaning since for them it is the best in their work of cleaning. You will find that almost all contractors will use this pressure rate even on those tough stains that you think cannot be washed by such low rate of pressure.
The main thing for the cleaner to do is establishing the best water pressure for them to use since the water flow rate determines the time you will consume cleaning. The contaminants on the pavement are also determined by the rate of water pressure how they will be quickly or easily washed away.
It is the advice from many cleaning contractors that when cleaning one should use a power washer with the volume of 6 or one with 5 gpm. When one is doing cleaning to surfaces that are vertical, then there is no need of using higher water flow rates since the gravity will help the contaminants to flow from the surface faster than expected.
If you want to increase your cleaning speed then you should not use the standard nozzles but instead increase the nozzles of your rotary then you will have a positive results. The water is swerved at an angle that makes the water to flow slowly if at all a cleaner decides to use nozzles that are at their standard position. Water is twisted in an un-deflected water jet creating a circular path that enables the water to leave the nozzles at a faster speed when you are using the rotary nozzles.
So as to improve your speed of cleaning on the larger areas, there are wheel mounted powerful washers that look like the lawn mower. This power machine has got its nozzles mounted on the spinning bars that are located on the area that is made of metal.
The price of power washers that uses cold water for cleaning is less in amount. For people who are using the power washer for the first time, the hot water power machine may not be the best type for them since it is expensive to buy it, it is heavy while using it and may seem hard to use for them.
With all these variations the machine is faster when doing your cleaning than the cold water power machine. Little time is consumed while cleaning thus making the hot water power machine to be cost effective.