Sunday, April 29, 2012

How do you plumb a pressure regulator on a pressure washer?

We've just recently bought a pressure washer, that had a bad heating coil, and because of this for some reason, the previous owner had re-plumbed everything to bypass the regulator, and we don't know how to fix it. It has 4 ports on it, 1 labeled in, 1 labeled out, and two others labeled "S". One of the ones labeled "S" has a pressure switch attached to it, and the other is plugged. 'In' and 'out' are kinda self-explanatory, but what the hell is the other 'S' port for? Thanks in advance...

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