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That could be a check valve. The pump is smooth and quiet. It's not cavitating and it loses pressure immediately with the trigger pulled, so it's not a restriction of supply or a leak allowing air. There's a check valve right at the pump in your video. Disconnect that line to it and see if...

I've done three, as long as the Rowe hoppers and dispenser are in good shape it works fine, although I've had a lot of issues with hopper empty codes when it's not empty. I put the washers lower than recommended and it works better. If the hoppers are worn out, either jamming or dropping too...

You and I must be related somehow.

You'll need to remove this screw and use something to push down on the valve to keep the diaphragm from pushing out of place. There's probably a gauged tool or screw to do it properly, I used a piece of brass rod and eyeballed it. FWIW, I ended up replacing the whole valve because it needed...

There could be any of a number of things wrong. The pump could need seals and/or valve o-rings, you could have a restriction on the inlet, there could be air entering the pump from a leak, there could be a bad check valve somewhere allowing some flow to be lost. If you can, set a camera or...

Best thing you can do is pull all the guts out and install Hamilton Changer innards with a Mars bill acceptor.

I ordered a part from RockAuto, they showed it delivered, FedEx showed left on front porch, no package anywhere so I file a lost claim assuming it was stolen. RockAuto forwards to FedEx as a deep search, two or three weeks later they email me saying it's not in their system anywhere and there's...

I don't know, it was pretty thin, maybe 14-16 gauge? It was an old Coleman boom arm I kept just for this. It was pretty easy to lay a bead on top of an existing weld. I ground a gap to try and bridge and managed to mostly close it, but I basically had to dab weld on each side. I deliberately...

I tried it today, certainly the easiest way to make a hole in thin material, and it won't bridge a gap, but it's easy enough to make a strong weld. I tried 3/32" rod, pretty sure it's too small. Reviews of the welder also recommended 1/8".

I can finally drive down major areas and say "I remember when this was all field."

I just saw that wash in the Car Wash Chronicles YouTube channel, the guy was driving around looking for washes to pick up. Edit: It was a different car wash in California, identical build style, same lack of boom.

Yeah, that's rust. Make sure you replace the copper washers any time you remove the plungers. Inspect the plunger for cracks before you reinstall it. It's really rare that a 530 plunger will crack, but it does happen.

I haven't had a chance to test it. I ordered the sticks you recommended, got 'em Friday, been trying to get over what I hope is a bad cold.

You'd be much better off harvesting rain water than trying to use reclaim. It's only possible to use reclaim in tunnel systems because you can control what goes in the pits. With a self-serve, you'll have people dumping all manner of crap in your bays and contaminating the water and breaking...

Read the error on the controller. It will be a flash or flashes, a pause, then more flashes and a longer pause. Read the codes in the manual, just search c2000: https://www.hamiltonmfg.com/documentation/ If it says hopper 3 whatever error, that's always the main hopper for that side. Any...

The DIP switches should be marked on how to set time per coin and price to start.

Yes, only to thwart changer abuse.

He only posted that because it fits his dollar coin agenda.

He hasn't been on the forum since his last post on Wednesday, so he hasn't seen your PM. Just wait.

The stem is under the coil. The coil is where the wires connect. Removing the plug should have accomplished the same thing. Maybe the check valve at the bottom of the manifold is stuck closed.