Both. The PSI delivers the "punch" to a washing application, or in other words, forces the contaminant off the surface. The GPM will flush the contaminants. Most homeowners and pressure washer contractors will opt for more PSI while the farmer and agriculture needs the flow to push contaminants to the final destination.

The overall value of a pressure washer is decided by two factors, pressure and amount of flow. Most people only consider pressure and disregard the equally important flow of the unit. Pressure is measured in pounds per square inch (PSI). This determines how much power the unit has to clean surfaces and break the bonds of dirt and debris. Water volume, also known as the flow of the unit, is measured in gallons per minute (GPM). See similar questions...

The flow per lineal inch for jet fuel cartridges is based on the API test. Dividing the required flow rate for a housing application by the rated flow for the cartridges is also used in determining the size of a vessel. Other variables may apply. Consult your Facet representative when sizing a vessel. See similar questions...

That is very difficult to answer without seeing you. This is because the amount of grafts required will ultimately be dependant upon the texture and quality of your hair (i.e. darker, coarser hair may require less grafts to cover the same area as compared to lighter colored, fine hair). It will also be dependent upon your density goals. See similar questions...

The knot count per square inch is unique to each rug. The count could range from 60 to 1400 KPSI, depending on the material used and the skill of the weaver. See similar questions...

Knots per square inch" refers to how many knots are packed into a square inch. Single-knotted rugs (most of the Bokharas and Tribals) have two strings in the same space that double-knotted rugs (Persians) would have four strings; hence twice the amount of knots. In a double-knotted rug, the second knot sits in front of the first knot and so is not visible from the back. More knots per square inch does not make a Persian rug a better rug than a Bokhara or Tribal rug. See similar questions...

A square inch is about the size of a standard matchbook. A business card is seven square inches. To determine the size of your tattoo, measure its length and its width and multiply the two numbers together. InkLifters charges from $42 per square inch per visit with a minimum of $99 per visit for tattoo removal. See similar questions...

Gallons Per Minute is the volume in gallons of the slurry pumped per minute. GPM can be used independent of pipeline size to calculate production. Examples of flow rates are 4,200 GPM for 10" pump up through 56,500 GPM for a 30" pump. See similar questions...

A.Hopefully, the person who drilled the well did a test to determine the gpm. If not, the only way to find out is to do a pump test. See similar questions...

Orkin and a local company will very likely use the same chemicals and treatment methods. The termite treatments should conform to state specifications so that shouldn't be a factor. The stabilty of the company should also be considered. Not to worry. Subterranean termites don't live in the wood. They live in the ground. Any termites trapped in the wood will not be able to survive because they are not capable of reproducing with out the queen. See similar questions...

What is the intended use of the water. Are you using it for an average home, or home and a sprinkler system? Is the well just for irrigation, farming etc? If you do have a sprinkler system or the well is for irrigation, I will need to know how many gallons per minute is needed and at what pressure. The number of sprinklers or heads will not tell me how much water you need. Telling me how many acres your yard is or how big it is, does not help at all in sizing the pump. See similar questions...

HY-TOWER IS SET TO RUN OFF OF ONE-GALLON PER MINUTE OF HYDRAULIC FLUID. THIS KEEPS THE TOWER FROM RISING OR LOWERING TOO SLOWLY OR TOO QUICKLY. See similar questions...

WC and PSI are measurements of pressure. WC stands for Water column. WC is based on an inch wide tube of water with a hole in the side at the bottom, the taller the tube of water the higher the pressure on the stream of water coming out of the hole in the bottom. The diameter of the gas line is not to be confused with the pressure of the gas inside it. When we say a 4" WC regulator, we mean the pressure, not the diameter of your gas line. See similar questions...

Our concern with helping the students avoid last minute work crises may seem unusual. Last any other assignment, work done at the last minute (whether on-line or as documents) are prone to minor mistakes as workers become rushed or careless. However, with web-design, these little mistakes might prevent entire pages from being unreadable and may take much time (and assistance from the instructors and support staff) to solve. See similar questions...

With an 80? rise in temperature (40? in, 120?F out), the water heater will supply 2.7 gallons per minute. See similar questions...

No! A five-minute shower will use about twenty gallons of hot water, so a family could still take two five-minute showers in a row even at a high flow rate. Again, if you have children, you might want to insert the optional flow controller, included with the product. See similar questions...

Gallon Per Minute determines the rotational speed of the tong. A low GPM will cause the tong to operate at a lower speed with a lower RPM while a high GPM will cause the tong to operate at a higer speed with a high RPM. Eckel offers an RPM Control which is a flow divider to decreatse the amount ofhydraulic fluid that reaches the tong, the remaining fluid is returned to the reservoir. See similar questions...