Skip to main content
Topic: Found my leak U320 Aqua hot (Read 4685 times) previous topic - next topic

Found my leak U320 Aqua hot

Think I found my leak. The saga continues

Re: Found my leak

Reply #1
Coolant leak next to bottom froze cracked pipe also. Was having to add several gallons in the last miles of the last trip
Scott


Re: Found my leak

Reply #3
YIKES! That's a shame that happened. Other people here have rebuilt their AH systems, so you will have lots of help if you choose to do it yourself.

Re: Found my leak

Reply #4
Ka Ching!!!

Re: Found my leak

Reply #5
dsd, sent you a pm

Re: Found my leak (AquaHot)

Reply #6
Original topic here Aqua hot water leak

Re: Found my leak

Reply #7
Yes definitely rebuilding myself. Good fun. I knew it was probably bad before we went and picked up coach. Budgeted 10 K and I'm planning on spending $500 or so
Just part of the list.
Scott

Re: Found my leak

Reply #8
Yes definitely rebuilding myself. Good fun. I knew it was probably bad before we went and picked up coach. Budgeted 10 K and I'm planning on spending $500 or so
Just part of the list.
Scott

Another really good writeup on DIY from Rob and Matthew a few years back (note there is some discussion/debate on which is the best ID/OD copper tubing to use....)

 Aqua hot Rebuild

Re: Found my leak

Reply #9
DIY from Rob and Matthew a few years back (note there is some discussion/debate on which is the best ID/OD copper tubing to use....
Yes they talk about 1/4 inch tubing. Mine does not have that. It does have 1/2 OD tubing which I have never seen. Possibly metric, but at this time I do not know. Called my HVAC buddy to check on tubing. I understand they come in three thicknesses. Red thin, blue heavy and some other color that is military grade Thick? I'll order the heaviest I can and hopefully a single length. Spoke with Rudy and am looking forward to the whole project. He has really good proven knowledge. So much easier to learn from others. Good group support sure makes taking on new problems without having to loose sleep easier. Thanks
Scott

Re: Found my leak

Reply #10
I can't imagine getting enough flow through 1/4" tubing for the shower. When Rob and Matthew posted a picture of their tubing it looked like 1/2" to me. I called Aqua Hot and they told me it was 141' of 1/2" of double walled tubing.

Re: Found my leak

Reply #11
I called Aqua Hot and they told me it was 141' of 1/2" of double walled tubing.
Curious what double wall tubing is? It's difficult to measure accurately but is between .025-.032 thick . Describing as double wall seems it would be thicker? Not my field but I'll find out in the coming week. Dean Richner owner of Richner Air  in Boulder City is my go to guy for such items. He is looking into it.
Scott

Re: Found my leak

Reply #12
Might be double wall in a different context, but based on this article, it is essentially a tube within a tube used to ensure separation and leak detection between potable water and the heat transfer fluid.

Safety Tubes

Re: Found my leak

Reply #13
Last one I fixed we used standard 1/2" Copper Refrigeration Tubing from our local Barsco HVAC supply company.

Mike

Re: Found my leak

Reply #14
Might be double wall in a different context, but based on this article, it is essentially a tube within a tube used to ensure separation and leak detection between potable water and the heat transfer fluid.

Safety Tubes
Not on mine. Single wall .025-.032 thick wall. Mike has the correct tube I think. This is why I am sourcing threw a HVAC source.
Scott

Re: Found my leak

Reply #15
I have removed and can start getting parts and supplies
Scott

Re: Found my leak

Reply #16
Keep the pictures coming Scott. You are getting right along on your list.

Re: Found my leak

Reply #17
Coils removed. Heat compound hammered off with needle scaler. Ready to sand blast
Scott

Re: Found my leak

Reply #18
Sandblasted and ready for primer

Re: Found my leak

Reply #19
Catalyzed epoxy primer two component. Just what I had available on hand