Hey y’all got a question. I have a surface cleaner that worked with my old PW. My new PW is 3600 PSI and 2.5 GPM. I believe the GPMs are to low because it’s not cleaning real good. There is two tips or the cleaner. Can I change out the tips to different size to make it work better? And if so what size?
You will be much better off to change your pressure washer
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You’re correct, GPM is low. In order to keep your psi around 3500, you would need a #1 nozzle size. 2 nozzles means you split your gpm, so you would have about 1.25 gpm at each nozzle. It will work, but it will be slow going. You typically want a minimum of 3.5-4 gpm for a surface cleaner.
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What a wonderful plethora of information. I am having troubles finding an answer to a related question. When a surface cleaner is “rated” for 3500PSI, 4000PSI, etc., is that just marketing? If the PSI is stepped down based on the nozzle, are there reasons to get a surface cleaner rated to your pumps PSI?
For perspective, I purchased a 4500 rated surface cleaner from Simpson because I thought that was mandatory for my 4500PSI pump. I’m wondering if since the pressure will be stepped down if it is relevant at all, or if I can get a lower PSI rated machine.
It’s just marketing
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If you’re going to be washing anything more than your own driveway get a real surface cleaner.
Well, that’s exactly why I asked, guy.
Thanks, that’s what I needed to know. Purchased a different model. Much appreciated.
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