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Hot Rinse Water?

Joe

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I was in a wash the other day... had hot rinse water and cold soap. Isn't this backward? The soap tank was attached to the rinse tank... so it did have a warming affect on the pre-soak, but I don't understand the hot rinse.

Any ideas?
 

Chiefs

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Hot/warm rinse helps greatly in the winter time to establish a bead on vehicles and enables you to reduce the amount of prodct as well. Hot Pre-soak as well works better in winter. But both need to be toned down when the hot weather hits.
 

Joe

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Hot pre-soak I can understand... but rinse?

The high pressure rinse goes on before the Clear Coat Protectant... so it wouldn't help that in any way and you won't want to heat the Spot Free which is the only thing that goes on after their protectant.

Since they are not heating the pre-soak... it just mystifies me as to why they would waste the heat on the rinse. It is a lot more water and energy than heating the pre-soak.

Thanks
 

MEP001

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Joe said:
I was in a wash the other day... had hot rinse water and cold soap. Isn't this backward? The soap tank was attached to the rinse tank... so it did have a warming affect on the pre-soak, but I don't understand the hot rinse.
If you just saw a tank that said "Rinse" and "Soap" on the front, you may be confused. Many systems only draw from the hot water for soap and wax, and the actual rinse selection opens a cold water solenoid. The soap itself can be cold because only a very tiny fraction of the high pressure soap in the bay is drawn from the soap tank, so what you saw as "cold soap" and "hot rinse" is irrelevant to what the customer actually gets.
 

Joe

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I looked inside the tank.

It for sure was the rinse water... the high volume valve and float... no hydrominder. The soap and wax was under the same lid... one large one... and they were definitely not hot. I ask the guy if that was the way it was... hot rinse water... and not hot soap... and he said yes.

I just wondered if I was missing something that I should know.
 

MEP001

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Joe said:
I just wondered if I was missing something that I should know.
I still think you missed the true function of the individual tanks. The soap and wax compartments are not the sole supply to the pumps when those functions are selected. Look under the tanks and you'll see very small hoses or tubing coming from the soap and wax tanks, and large hoses from the "Rinse" tank. The soap and wax mix with the hot water at the pump, with only a tiny amount of the soap or wax mixing with hot water and not enough to significantly affect the temperature. "The guy" you mentioned may not know how it works either.
 

Joe

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Thanks MEP001... I think I am beginning to understand what you are saying. Thanks for that clarifying statement. They are using the water from the rinse tank to feed the soap and wax low pressure systems as well as the rinse.

That may be true... I will have to look next time I am there. I always thought the question was whether to have hard or soft rinse... never have heard anything about have a soft hot rinse. I will see how it does... if it makes a difference on the finished product.

I do know he is using the same products in another wash and has the concentration levels way down on that one because it has hot water fed to the pre-soak.
 

MEP001

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Joe said:
They are using the water from the rinse tank to feed the soap and wax low pressure systems as well as the rinse.
The typical setup is to have the rinse selection feed cold water to the pump via a solenoid. Unless the bays rinse with hot water, the tanks are not used at all during rinse.
 
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