Please explain how pressure washer work and its pressure generating principle.How big psi can 12V can generate

5000 psi pressure washer image

adhikari_s

I am looking for a pressure pump(washer) that generates 1500-5000 psi applying 12V DC battery. How many batteries required ?
Can I buy such pumps in the market ? please give more information on it.

Answer
My pressure washer has a 5 horsepower motor and creates about 200 psi. The short answer is that car starter motors create 5 to 10 hp for a short while but get hot fast. One battery will do the job for a very short while. The easier way is to use an electric washer, convert the 12 vdc to 120vAC with an inverter and wash away. The amount of batteries will depend on how long you want to operate at high pressure. The more the better. Can you buy such a pump, sure, convert a small home electric unit. Another good source for this stuff is West Marine, check their website and they have a great tech staff and no I don't work there.

What is the best/easiest way to remove paint from a driveway?

Juan Pablo

Id like to acid etch my driveway. It currently is painted with masonry paint. HOw should I go about removing the existing paint and prepping for the new finish?

Answer
You can either use a concrete grinder, or a pressure washer with at least a 5000 psi rating.
Just did a job using the pressure washer method

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