Jumat, 06 Juni 2014

Pressure washer for Car?




bibi


my husband is thinking to buy a pressure washer , main reason is to wash his car, but also to use it around the house, drive way etc...but we have no idea which one to buy, which PSI is strong enought to clean the car without damaging the car. He baby his car very much!
Does anyone know what is the PSI at the car wash?? is there any pressure washer that has adjustible pressure?
Thank you!
does anyone know what is the PSI at the Coin car wash.



Answer
on pressure washers the PSI is not as important as the GPM (gallons per minute) so look for pressure washers that have a higher GPM rating. also you adjust the PSI by changing nozzles. make sure there are a variety of nozzles avaliable or the nozzle itself is adjustable. this ensures a wide variety of uses. you would want low pressure to say clean exterior of house vs clean car or driveway. a typical car wash uses 500 to 700 psi. you can find them at sears, lowes, home depot, harbour freight and many auto parts store.

Water hose pressure washer adapter at lowes?




Iron


Does lowes carry the adapter you can put on your garden hose to use it as a pressure washer? Also does this thing work good, anyone used it? Thanks.


Answer
Pressure washers INCREASE the pressure of the water entering the washer by means of a HIGH PRESSURE pump. Nothing that does not reach similar pressures will have the same effect.
(Pressure washers usually operate up to 1500 - 3000 PSI, up to 15 - 30 times Household water pressure.)

There are a few items that use compressed air to additionally pressurize the water, but they require a separate air compressor and a second hose and never reach really high pressure. (These can discharge at up to about 250 PSI, up to about 2 1/2 Times Household water pressure.)
http://www.expeditionexchange.com/staun/
http://www.youtube.com/watch?v=NHBAT4G55T0
These are usually only used in industrial applications where compressed air is already available.

I am assuming that this is the sort of item you were looking to find.
http://www.asseenontvvideo.com/511962/Water-Jet-As-Seen-on-TV.html

This type of item DOES NOT increase the pressure coming into the device,
it merely maintains more of that pressure and hence has a somewhat increased force to the stream of water coming out of the tip, by simply reducing the size of the orifice (hole) at the end of the nozzle. (Household water pressure is usually under 100PSI.)

There are quite a number of common nozzles that achieve much the same effect at a much LOWER COST.

The Adjust-a-Power nozzle is a common one widely used by forestry fire fighters, and car washes.
http://www.dixonvalve.com/dpl/dpl_page/2007/239.pdf
http://www.jmesales.com/item/143575/Dixon-Adjust-a-Power-Nozzle.aspx
You may even find this type of nozzle at Lowes, Home Depot or your local hardware store.

An even cheaper unit to try that is sure to be available at Lowes, Home Depot or your local hardware store is a SWEEPER nozzle. Which has a smaller orifice than a regular Garden Hose Nozzle, but larger than the Adjust-a-Power nozzle.
http://www.dixonbrass.com/dpl/dpl_page/2009/029.pdf
http://www.jmesales.com/item/148800/Dixon-Brass-Sweeper-Nozzle.aspx

Keep in mind that when the orifice is smaller LESS water comes out per minute (or per hour) if you are at the same pressure, so with these devices if the water is doing the real washing it may take significantly longer to achieve the effect you want as well.




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