How to Power Wash Concrete
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. Higher pressure rates can be used to remove stains that may take time to be washed away on normal pressure ratting.
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. It is surprising to see most cleaning contractors using such low pressure rates even on tough stains that may seem difficult for you to clean.
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. If the floor has some contaminants, then the water flow rate is the one to determine how one will easily clean them away quickly or slowly.
Many cleaning contractors advice cleaners to use a power washer that has a volume output of 6 or 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 nozzles that are at their standard position tend to deviate the water at an angle that does not make the water to flow faster. If you decide to use the rotary nozzles then be assured of having a faster cleaning since the water will be twisted in an un-deflected jet hence creating a circular path that makes the water to leave the nozzles faster.
Wheel mounted power washers that resemble lawn mower have been made to make cleaning interesting for cleaners who do cleaning on larger areas. This power machine has got its nozzles mounted on the spinning bars that are located on the area that is made of metal.
Power washers that use cold water for cleaning are cheaper when buying them. 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.
The cold water power machine uses less aped in cleaning when compared to hot water power machine. The hot water machine is cost-effective since one uses less time in cleaning.