Magic Wand Self Serve System - Water Supply Question

I am rebuilding an old Magic Wand self serve pump rack (high pressure functions only - I will be installing new low pressure systems). I never operated the system and most of the piping and tubing was cut to prevent freezing so I am trying to piece things back together. There are three high pressure options (rinse, soap, and wax). I am installing a new tankless hot water system with a 30-gallon buffer tank to replace an old Weben-Jarco automatic circulating tank type water heater. The old water heater had piping plumbed into and out of the back side of the rinse tank to create a loop between the water heater and rinse tank. From what I can tell, cold water was fed into the rinse tank in the back top of the tank and the water discharged to the pump out the bottom front of the tank. Does anyone have a good plumbing diagram for how to reconfigure this system to work correctly so that the rinse tank can "call for hot water"? Do I even need the rinse tank any longer or can I bypass it? Do I need an additional pump or will the gravity feed from the rinse tank be sufficient to circulate water? How do these Magic Wand systems heat the wax and soap water? I apologize if these are dumb questions as I am fairly certain that I am making this more complicated than it needs to be.

I have one
I will take a bunch of pics and send to you
It is a very simple system once you get the idea!

Thank you! I appreciate the help!!!

Original Magic Wand equipment had a hot water tank ( probably what you are calling the rinse tank). When soap or wax was selected, it pulled hot water from that tank. For rinse, it had a 1/2” Asco valve plumbed into the intake of the pump, that was fed from the cold water city pressure line. Do you have any pics of your equipment? I’ve built a lot of those pump stands in the late 90’s and early 2K.

Yea
And I ll send my phone number with the pics and I can talk you thru it

Fatboy is spot on with his description
I have GC valves - Works the same

A couple pics from an old pump stand

Fatboy769 said:

Original Magic Wand equipment had a hot water tank ( probably what you are calling the rinse tank). When soap or wax was selected, it pulled hot water from that tank. For rinse, it had a 1/2” Asco valve plumbed into the intake of the pump, that was fed from the cold water city pressure line. Do you have any pics of your equipment? I’ve built a lot of those pump stands in the late 90’s and early 2K.

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@Fatboy769 Have you ever reversed the cold and hot water on one of these set ups? In other words, I am thinking about having the tankless water heater and 30-gallon buffer tank go to the pump directly and the cold water go through the rinse tank then to the pump. With the new water heater and buffer tank, it seems pointless to have the hot water go to the rinse tank. If I keep the hot water going to the rinse tank then I will need to add a recirculating pump to circulate water between the buffer tank and rinse tank.

LVWash said:

@Fatboy769 Have you ever reversed the cold and hot water on one of these set ups? In other words, I am thinking about having the tankless water heater and 30-gallon buffer tank go to the pump directly and the cold water go through the rinse tank then to the pump. With the new water heater and buffer tank, it seems pointless to have the hot water go to the rinse tank. If I keep the hot water going to the rinse tank then I will need to add a recirculating pump to circulate water between the buffer tank and rinse tank.

Click to expand...

Sent you a DM