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Here's a pic of how I have mine plumbed. BTW, its important to know my system is plumbed using gravity feed hot and cold water supply. I don't know that it matters much as long as the soap and wax are plumbed to the water inlet to the pump, this is just how I set mine up...I don't have any flow...

I buy a case of 24oz bottles of water at Sams for less than $6.00 and get $1.00 a bottle! Hard to believe there is more profit for water than pop!

We started with a "Coke Owned" machine and hated it. It was a 20oz bottle machine. They set the price at $1.25 and sold us the pop for $25.00 a case of 24...So we made $5.00 a case...We weren't allowed to change the price. It wasn't even close to being worth it. After a few months I had them...

Send it to Randy....He's the best to deal with when it comes to Mars Validators!

Looks like you solved it and posted as I was typing....Even the foam in the photo isn't terible....

If you have the anti-syphon hole, Is any air getting into the pickup hose?? If yes, the FV is leaking. If not, sounds like you need to take the hydrominder apart and make sure you don't have a cracked eductor. Or maybe the FV is not letting chemical through or is erratic. That's the only things...

Can you verify whether or not you have the anti-syphon hole in the discharge tube from the hydrominder like Mep suggested. Gotta start at the basics first...

My HP functions are all together on the rotary, so I would have never thought of that. I have all my On Delay timers set for 2 seconds, so even if someone switches through any of the selections, they never come on anyway. For returning customers, they know the switch positions. So most...

I take mine out about twice a year, turn them inside out and clean them real good with a high power leaf blower. Then take them to the laundry mat and run them through a High Boy washer...As for cleaning in-between, I shake the filter bags down right before cleaning out the vacs. About every 3...

What kind of mechanical crimper are you using in the field that will crimp a 3/8 HP fitting? It takes almost 5000 psi to crimp my 3/8 fittings to the right diameter? You are crimping to the proper diameter, right? BTW, I'd rather have the tool! At least I get to use it more than once! 🤣😂🤣😂

Why would you want an On/Off delay timer??? I only run 2 second On delay timers....

Check Ebay….There are always used ones on there for sale. Some have a complete set of Dies which is what you need to look for. I got a heavy duty Dayco crimper, air/hydraulic pump, and about 8 dies shipped for $900....All my fittings come from https://www.discounthydraulichose.com/, pretty...

The two numbers (25x36) are multiplied together to give you final ratio. 900:1 Seems a little high for FB soap even though Cherry Blossom is Ultra Concentrate. According to KR, final ratio should be 600-900:1....In a perfect world, you are at the high end of the recommended final ratio...

Sure does bring back good memories! ;) My Blowdown/Washerfluid system is still flawless. Just turn it on once temps start dipping close to 32° and let it do its thing...Its been so long since I had a freezeup, it would take me awhile to figure out how to un-thaw! LOL... Glad to see you are...

A good read if you have time. Interesting, your foamer looks a lot like mine including the SMC fittings! LOL... https://www.carwashforum.com/threads/foam-brush-plumbing-attn-2biz.9947/

Also, 5.8 grains isn't bad....After softening, mine is zero grains....It comes in from the street at about 4-5 grains... About 3 years ago, our water treatment plant had a softener equipment failure where they weren't softening water. It was coming in at 14-15 grains. It didn't take long for my...

I got the SMC filter bowls from KR....You'll probably install them after the tiny hydrominder inlet screens plug! I like having "Visual" type equipment so I can see at a glance how things should be performing....Like Flowmeters...

Sometimes I wonder if the OEM built systems so chaotic and sophisticated that they thought they would only be the ones able to work on it! I had a system similar to the OP's photo of his FB setup... Mark VII was another system WAY OVER engineered and almost impossible to work on...Didn't take me...

Nope, No check valves needed when feeding PS and TF out of a foam gun. With the larger 40-40 tip on the gun, the pressure will take the path of least resistance which is out the gun. Its not the same as running PS on the HP gun. The solenoids are more than adequate to hold back any back-feed...

A good thread to read below for some of the new owners. I haven't changed a switch since discovering this mod! https://www.carwashforum.com/threads/rotary-switch-problem.12903/