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It's a nice looking unit, though in my experience no one cares about altering the color change speed. How hard would it be to add an output to switch on a motor or an air solenoid for a Flojet? You need another controller for that otherwise.

I have a customer still using prodigy.net for email.

I've been using a ladder relay for the last 25 years. Eight inputs (Infinitely expandable), an output for an air solenoid or electric motor, and the colors overlap so you have six instead of three.

Meanwhile I visited my grandparents' empty homestead a few days ago and all I came across was my uncle's (the last person who lived there) stash of Penthouse magazines.

I used to run a chain of washes that had a bank of foam generators in the room and 1/2" hose running the full length of the roof, so about 100' to the farthest bay. The best I was able to get was a full minute for that bay to get foam.

It's because the foam drops out and it has to refill the whole length of hose with foam before it reaches the brush. I've seen lots of washes like that. You can only turn up the air pressure so far before it causes too much foam and it stalls the flow. There's no upside to the single hose...

It shouldn't run out of the lines, but if air and liquid tee into the check valve it would probably help it foam. The only reason you might need a check valve on the foam brush would be to keep the weep from backing up.

I will use a float valve in the main water tank so the reject can flow via gravity. I've seen systems using a well pump to run it into the rinse line, but I'd rather keep it uncomplicated. I've already written a ladder program for a relay to control the RO system where I added an interlock to...

Are your foamers in the room with a single hose going to the bay? If so, run two separate 1/4" ID tubes to the bay and put the foam generator close to the boom. It won't take but a couple seconds for the foam to get to the brush. I don't understand why you'd want a check valve on the foam brush.

Do the church swipers have you swipe top to bottom and then left to right?

My 6 bay SS water bill is about $1600 a month, so yours sounds pretty typical of the area. I do not reuse the RO reject because I don't have a place for another tank, but I plan on building a loft in the room for one. San Antonio requires the RO reject to be recovered and used.

I like to keep changing it until it's completely clear, but I've rebuilt General pumps with the crankcase full of water, drained and filled it with the oil/trans fluid mix, and sent them back to the customer with the same instructions to change it, then went to their car wash as much as a year...

I would use 3/8" ID for presoak, but 1/4" is enough for tire cleaner and the air.

You don't really need the siphon breaker, the 506 is the same as the 511 without it. As long as you cut or drill a small hole in the hose above the liquid level in the tank, you won't ever have an issue that requires the siphon breaker. Just replace the bracket bolts with stainless and it will...

This is a good example of how hard it can be to determine which new users are bots.

I guess you don't know what a mini tunnel is. You do know there are 100+ foot tunnels, are there 100 foot long cars?

There's a stainless stand made for it to sit on.

The mini tunnels I mentioned are 35 feet. I believe one is a conveyor, the other is the usual roller type. Their self serves stay pretty full, but both are in excellent locations at a traffic light on a major road.

FWIW the car wash industry is about the worst you can choose as an investment, in other words literally almost anything else will make you more money with less work. And that's with people who know what they're doing. You will be almost completely at the mercy of a dozen companies who will be...