The pressure put out by a power washer is measured in psis pounds per square inch.
Pressure washer gpm needed.
The gpm of a commercial pressure washer can be up to 4 0 gpm.
Gallons per minute gpm water flow is measured in gpm.
This is ideal for deep cleaning concrete stripping paint or graffiti and more.
The exact or a range of psi required is what the pressure washer psi chart reveals.
A typical water hose will produce more gpm than most any pressure washer can use.
Let me give you an example.
Gas powered pressure washers typically put out more psi pressure compared with electric models.
On the contrary this pressure is too less to clean parking areas stained with tar.
Water pressure is measured in psi.
Commercial grade pressure washers are included in this group starting at 3100 psi.
The larger the gpm the more surface area a pressure washer can clean.
Even if the gpm water flow of your water supply is just a little bit lower than the gpm specs of the pressure washer you can wind up ruining the unit.
This pressure is more than a garden hose.
A little 2 5 is fine for washing your car.
Remember if you re never going to exceed 2500 psi then you can save some money by choosing a 2600 psi pressure washer over a 3000 or 4000 psi pressure washer.
Learning how much pressure is required to successfully clean different surfaces materials or objects will help you determine what size pressure washer you would best benefit from.
The gpm number on the pressure washer has to match the capacity or the pressure of the water supply.
You buy a 2 8 gpm unit.
This is not to say that a residential pressure washer cannot use 4 0 gpm but it is something that is not commonly seen.
Pressure washer psi and gpm work together to provide the most efficient cleaning.
For the toughest deep cleaning jobs consider 3100 psi pressure washers.
These pressure washers put out 2800 psi and higher at 3 to 4 gpm.
Higher gpm is needed for any seriously large or fast cleaning job.
With wood you will need a stronger pressure washer because you ll need the strength for spraying away the mold and the mildew.
Commercial pressure washers are great for the toughest of stains and paint prep.
Unlike cars you won t scrape away the finishing of the wood furniture.
The psi is necessary to break the chemical bond between the surface and the stain.
It is recommended that you get a machine with a pressure level of around 2500 psi with around 2 0 gpm.
A 1 500 psi unit might indicate a high pressure to a homeowner for cleaning decks and siding.
It is said in the pressure washing industry that the pressure psi does the cleaning but the water flow gpm cleans it faster.
The stronger the chemical bond the more pressure you ll need to remove it.
