Re: Judson TNT Refurbish

by ACE Services Sun Aug 23, 2015 7:35 pm

Yeah that's it I like it best but can't always use it because of the way it mounts. The tnt regulator being mounted to the pump works. Like I said you have to add a tee to the bottom then connect the high pressure line to the tee the other side is the one that goes to the water Bx.

by Mo Sun Aug 23, 2015 7:54 pm

Yeah mine mounts at the panel. Dang good price though

by Mo Tue Aug 25, 2015 1:49 pm

I think I maybe losing pressure due to a leak in the heat exchanger. I lost pressure again today so I bypassed the HX and finished the job.

by ACE Services Wed Aug 26, 2015 5:08 am

If you have a leak in the hx you would have water coming out of the exhaust. you could be having cavitation in the heat exchanger meny you got steam. that might be the pressure drop. If you laid th wand down or didn't trigger the wand for a while. Most hx systems will dump eccess hot water to control temp. Even though you may not have the best temp at the wand when using it, if not triggered no water movement the temp continues to rise.

by Mo Wed Aug 26, 2015 5:50 am

Not noticing any water out of the HX exhaust and I lost pressure after cleaning just the half of one room. Maybe it is the regulator.

by Mo Wed Aug 26, 2015 3:56 pm

Check out the old muffler. I put some temporary gunk on there till I got a new one. it was very temporary Very Happy

How much of an increase in temps on the HX do you guys think I will gain? The winner of the contest get a slightly used muffler. I believe the last reading was 160 with 10 feet of hose

by Davey Cracker Wed Aug 26, 2015 4:18 pm

Count me out of this one, Mo...........contest that is, I'll win the next one that has value. laughing

by Mo Wed Aug 26, 2015 4:38 pm

I should have known you wouldn't participate in this one Very Happy

by ACE Services Wed Aug 26, 2015 6:42 pm

Keep the muffler but I'll guess 20 degrees

by Mo Thu Aug 27, 2015 11:17 pm

Hey Eddie or anyone else.

I thing screwed up and bought a 500 psi relief valve for the HX. Should I have purchased a 1000 PSI relief valve or a temperature relief valve? Im hoping this will solve the pressure loss problem.

by ACE Services Fri Aug 28, 2015 4:24 am

Both, 1000 psi and 200 degree.
Although if are cleaning at less than 500 you can get buy with what you have.
200 degree should help with the cavitation problem as water starts to boil at 212 so keeping it around the 200 mark should alleviate that problem.

by Mo Fri Aug 28, 2015 7:16 am

I have a check valve laying around. For the sake of testing, can I put that at the inlet side of the HX and the pressure relief valve at the outlet side to see if cavitation is the reason Im loosing pressure?

by Mo Fri Aug 28, 2015 11:32 am

Mo wrote:I have a check valve laying around. For the sake of testing, can I put that at the inlet side of the HX and the pressure relief valve at the outlet side to see if cavitation is the reason Im loosing pressure?

Disregard that I think I would rather blow up mu pump than my face Shocked

by ACE Services Fri Aug 28, 2015 2:11 pm

Put both on the outlet side temp first press second. Inlet side from pump is cold water in.

by Mo Fri Aug 28, 2015 4:11 pm

Thanks ACE

Here the video of the temp test after the new muffler install.

by ACE Services Fri Aug 28, 2015 5:19 pm

Looks good to me. Big difference in temperature right

by Mo Fri Aug 28, 2015 5:28 pm

Yeah pretty good increase. Im wondering how much of an increase I can get if I plumb the exhaust directly to the HX.

But it doesn't do me any good if every time I hook up my 100 foot hose I get no water coming out. I can add my wand or sprayer wand and get water all day long

It happened again today. Two trigger pulls and I lost all pressure. It works fine if I don't use the heater

by milspec6 Fri Aug 28, 2015 5:38 pm

Sounds like a blockage / back pressure might be causing the pump to bypass to me. Clean out that Hx and see if there is any change.

I had a similar thing happen with a strainer attached to my water softener tank. The added resistance kept turning off my fill valve on the fresh water tank.

by Mo Fri Aug 28, 2015 5:45 pm

I'll try that Rob. But would it work with the 10 foot hose?

I have no idea who makes this heat exchanger. Right now I have the water out connected to the exhaust in side of the heat ex changer. Is that the way it supposed to be or do I have it backwards? Does it matter?

by milspec6 Fri Aug 28, 2015 5:52 pm

I have only seen hx like that with John's Custom Machine and over at Cobb's Carpet Supply, but there may be others.

It would only matter if there is a check valve in there somewhere, which might be the source of the resistance. If no check in place, it should just free flow.

by Mo Fri Aug 28, 2015 6:09 pm

Right. It doesn't have one.

I have a little giant in my garage whispering in my ear. " Why are you messing with this heat exchanger crap? Just connect me." Very Happy

by ACE Services Fri Aug 28, 2015 6:23 pm

Try it Mo switch the in and out lines and test it out. I would have connected the same way, but try it and see. Flushing it out can't hurt but if it works with one hose and not the other that makes no sense. Try another long hose if it has a cut off on it try taking the end off then open the cutoff to check water flow.

by Mo Sat Aug 29, 2015 2:23 pm

Check this out guys. I did some carpet and upholstery today. I didn't want to mess with HX so I connected directly to machine for the carpet. But I decided I would connect to the HX for the upholstery and it worked with no problems.

WTF?

by Davey Cracker Sat Aug 29, 2015 6:43 pm

Mo wrote:Right. It doesn't have one.

I have a little giant in my garage whispering in my ear. " Why are you messing with this heat exchanger crap? Just connect me."

That's a great question...........what's the answer?!

$hit let me use it, and I'll give you my clogged up one to just take up space in your gayrage!

by Mo Wed Sep 02, 2015 6:15 pm

I took this T off the machine. The pressurized water in and out to QD at panel, top part to pressure gauge. What is the pin at the bottom of the T for?
Judson TNT Refurbish - Page 16 T_atm10

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