what in the heck is going on here..?

Mikey P

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eruption-truckmount-cleaning.jpg



All those blue hoses going to the tank?
 

clean image

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Carl Maddock
what ron said, probably a fresh tank inside there> weird.
and they have meter tips. bypass allittle onen 1 valve, bypass allot open both?
 
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Shawn Forsythe
Usually with the number of hoses being used, along with the number of entry points, it would tend to indicate that the waste-tank is being used for several heat control measures.

Ordinarily, the primary and secondary orifice flows are recycled back to the inlet water flow source or water box (which this machine may not have). So you may make independent lines with jetted openings into the wastetank. The line with the solenoide valve is probably a bypass line to flow over-temp water to the wastetank under thermostat control, thereby being displaced by cooler water entering the system from the water inlet.

Another hose may be connected to an additional dump point created by a thermal valve.

On machines that seek to minimize the use of fabricated orifice bodys, the less expensive solution is to simply run separate lines to the recovery tank, each with it's own spray-jet of a given size to manage a particular flow. Some lines, like safety temp relief lines will use a very large opening to dump hot water fast. While others, such as the primary and secondary orifice lines will dump at a small trickle, since their only purpose is to permit real-time flow across a sensor/sender.
 

AshleyMckendree

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Ashley Mckendree
Its a big step backwards in TM technology, is what it is.

Might as well just give the customer a bypass wand... at least it would keep the inside of the vac hoses clean :oldrolleyes:
 

Newman

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St. Charles, IL USA
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Chris Newman
Stupid question:

In general, why are the heat bypass systems engineered to dump fresh clean water into the waste tank rather than the fresh tank?
 

Hoody

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Steven Hoodlebrink
Stupid question:

In general, why are the heat bypass systems engineered to dump fresh clean water into the waste tank rather than the fresh tank?

I always hated that on prochems, which is why I'm re-routing the bypass hose from the waste tank to the fresh water tank. I have two 60 gal fresh water tanks w/ shelves on top. The water draws from them equally.
 

dealtimeman

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Michael
I believe they dump into the waste to avoid raising the temp on your fresh going into the pump as most pumps are not going to like 200 degree water being processed through.
 
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Able 1

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I always hated that on prochems, which is why I'm re-routing the bypass hose from the waste tank to the fresh water tank. I have two 60 gal fresh water tanks w/ shelves on top. The water draws from them equally.

Be real careful and make sure the tank your putting the hot water into is vented REAL good or else it will expand the water tank and blow the lids off! Don't ask how I know..:icon_redface: After I realized what happened I decided to watch it on the second job that day..:eekk: Knowing how thick those plastic tanks are and to see them expand was pretty crazy
 
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Benton KY USA
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Lee Stockwell
We eliminated the water box on the 405s and instead run any bypassed water back to the 160 g SS fresh tank. On its way back it goes thru a small heater core with the option of being fan cooled.

For several years we have run General Emperor pumps which have been quite impervious to hot water damage. No need for a clutch either...it just runs.

Just don't "shock" the pump by suddenly introducing COLD tap water to the pump after running it HOT or DRY.
 

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