Hot water bypass dumping into waste tank

Jimmy L

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Had a 1995 PC bruin that dumped water too. After having one of the blower exhaust HX freeze and pulled out I had 170 degrees all day long!
Except in the winter : (

My advice to maker's of TMs is to have more LED lights on the front panel and more electronics just like new cars to make a simple machine more complex. THAT appeals to younger buyers.

And I predict that BMW and other high end auto makers will soon get into the business of making TMs. So when cleaners pull up to stop lights and compare each other's machines there will be some snobbery going on.
 
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Jim Martin

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I’m tired of my truckmount dumping hot water over a certain temperature into the waste tank and depleting my fresh water tank supply. I understand the machine is doing what it’s designed to do, and that there can be a number of reasons the water heats up and needs to be dumped.
My question is, has anyone (surely someone has) plumbed the hot water dump line back to their cold freshwater tank? I’m sure that over time, the freshwater tank may get too warm, which is problematic for plastic tanks, and also means the truckmount will create hot water faster and start to dump even more hot water. Aside from those problems, are there other issues I’m not aware of?


get one of these and hook the therm valve dump line to it and then run it into your holding tank...wire the fan to the machine so it automatically turns on when you start up and it will cool the water down enough that you don't have to worry about it....

 
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get one of these and hook the therm valve dump line to it and then run it into your holding tank...wire the fan to the machine so it automatically turns on when you start up and it will cool the water down enough that you don't have to worry about it....

Jim that's basically a trans cooler wth a fan. I bet you could just buy a trans cooler and mount it behind or in front of the radiator fan and plumb it which would be cheaper and serve the same purpose
 

Jim Martin

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Jim that's basically a trans cooler wth a fan. I bet you could just buy a trans cooler and mount it behind or in front of the radiator fan and plumb it which would be cheaper and serve the same purpose


Seeing how ambient temperatures effect this machine and the temperatures.. ... I'm not really sure I'd want to block that radiator anymore than what it is...
 

Meter Maid

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On illogically built machines......
Like?

My Boxxer can divert hot water from two different locations.
The old El Diablo HX version seemed to have a pretty simple temperature control system. When the water was too hot, the heat from the blower and motor would get sent out of the muffler instead of being sent to the HX. That seems to make sense, but it’s obviously never caught on.
 

bob vawter

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Again....does this hot water that you all seem necessary to divert.....have solution in it...?
 

D Luke

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I genuinely feel bad for guys dealing with this, (which seems like 90% of slide in owners).

There is a simple solution. It starts with B and rhymes with Cutler.

If that isn't an option, my advice would be to hook up to fresh water on every job and get an apo.
 

Hack Attack

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how hard would it be to run a partial bypass system, that can be used for when you know you're going to have low flow ie upholstery?

After pump but before HX have a splitter line that you open. 1 side feeds the main solution line the other goes straight back to fresh water from where it came.
The pump has constant flow and cooling and you still have the safety of the original bypass

*or is the bypass you're talking about after the HX to protect the HX?
 
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bob vawter

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Not 100 percent sure.......BUT I believe that
Chris Lee has NOT touched a wrench to the Genie I sold almost 10 years ago....best machine ever made......Butlers are # 2! a great machine but too expensive and too
Many bells an whistles
 

Andy

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I bet you could just buy a trans cooler and mount it behind or in front of the radiator fan and plumb it which would be cheaper and serve the same purpose
At start up it would be filled with plain cold water. If the ambient outside temperature is below freezing the cold air going across those coils will freeze the water.
 
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And I predict that BMW and other high end auto makers will soon get into the business of making TMs. So when cleaners pull up to stop lights and compare each other's machines there will be some snobbery going on.
Let’s hope not, they already don’t have oil dipsticks, and on some of the highest end models, you can’t even access the engine compartment....
Dealer service only...
 

bob vawter

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Um, didn't you tell us he froze it last winter?
Holy baby jesus.....I hope not!

He callt me a month or so ago....
Crap a lite frost will take out the pressure gauge and maybe the three rubber diaphragm in the pump...after that the 1200 dollor HX is junk.....
 
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Jim Martin

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I don’t think he needs to do anything custom. If he’s single wanding this tm, it should be mandatory to go 12flow on the wand. With my heat on warm setting, the temperature ranges from 140-180.
I genuinely feel bad for guys dealing with this, (which seems like 90% of slide in owners).

There is a simple solution. It starts with B and rhymes with Cutler.

If that isn't an option, my advice would be to hook up to fresh water on every job and get an apo.

what we should have bought and/or the way it should be built is a moot point...
therm valves are everywhere and they always have been...slide-ins....direct drives....PTO..we all have them...
and way back when...you did not hear too much about them..one every now and then would have a problem.....

I have had my thermal wave since 2010...she is cranking about 6000 hours now..I just replaced the therm valve for the very first time since I have had it about 2 or 3 weeks ago..but I also took the time and set it up to run in my climate.........I ran a CDS unit for 5 years and never touched it once....

that being said....there is a bunch of different variables that people do not take into account...
slide-ins come a long way in the last 10 years or so...they are generating a lot more hot water than they ever use to...
ambient temperatures play a role in how much heat it will generate and how much the therm valve is going to dump...
how much air is circulating around a machine so it can breathe and allow heat to escape...
your water flow...
just to name a few that can affect the way your machine runs and how hot it may get to tell the therm valve to dump more often....

on my thermal wave...my climate is very hot with mild winters...being a liquid-cooled system...ambient temps play a big role on my machine...I can loose up to 20 degrees in our mild winters because of the cooler air that pulls into the system....and in our hot summers...I can peg the needle without even trying...so my therm valve is dumping way more in the summer than it is in the winter....If I ran a fresh tank and I wanted to divert the water...I would not have a choice but to have the external radiator with the fan set up to help me cool it the water that the therm valve is dumping to go into my fresh tank...and even then....110 to 115 outside temps.....I would still be pushing it...

My 570...totally different...much newer than my thermal wave...they took this machine and learned how to really harness the heat...controlling it is the bitch... you can not keep a therm valve in it...I finally just gave up on it...it is a must for me to run an A.P.O. with this machine so I just let it dump....in my temperatures...it can still push more heat then I want even though it is always dumping....so it is just not worth it to me to worry about...but for others... it has been a real pain...

Take these same machines...put them in a climate that is much cooler summers..and very cold winters..and it is an entirely different situation....

you can up your water flow to make your water move faster through the HX and not generate as much heat...
you notice that when you clean tile you are not pushing as much heat as when you are cleaning carpet...and if you have a lot of UPH..most have to go and dial back there machines or we will overheat because the water is hardly moving....
but not everyone can do this...the last thing you want to do is put down more than your equipment can recover...your just going to shoot yourself in the foot.....

they are what they are...and they are everywhere...they help release the heat out of a closed-looped system and help protect your equipment...it sucks that they have to dump into the waste tank and fill it faster then we want...but...99% of them have been like that forever...
 

Papa John

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Ill assume your TM uses Heat exchangers.
This issue might be that the engine is running too hot.
Change the engine oil at about 80 hours or 50 hours if thats what the specs call for.
Check the radiator fluid level.
Consider using 70% antifreeze- 30% water.
Burb the Heat exchangers regularly.
Make sure the radiator fan is working.
Change the blower oil with, correct oil, as specified.
Get Off the phone.
Inform a chatty customer that you need to keep working or your machine will blow up.
If working on a spot takes too long--- stop and prespray the next room to cool the machine down.
My TM is set up to dump water into the fresh tank. If that water get too hot I simply add cold water to it.
 
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