Moiras Posted July 6, 2023 Share Posted July 6, 2023 Hi Guys, I have a good leak when the water pump is on or on city water. This is mid-coach. Going from outboard to inboard--the first drain is the fresh water tank drain, then 2 drains for the low point aqua hot and then there is this single black drain near what looks like a board running the lengthwise of the coach. This leak is coming from right next to that black drain tube. If I had to guess I would say it is underneath the aqua hot area. Anybody have any ideas? Link to comment Share on other sites More sharing options...
Dr4Film Posted July 6, 2023 Share Posted July 6, 2023 Have you opened up the Aqua-Hot access panels to get a closer look at the water fittings inside? Link to comment Share on other sites More sharing options...
Doug and Nicki Posted July 6, 2023 Share Posted July 6, 2023 (edited) I had a similar problem two weeks ago. I found that my Sure-Flo pump had a tiny pinhole in the plastic end cap. It was spraying a very fine mist that was hard to see. After a few hours, there was a lot of water in the bay next door, because that was the direction it was spraying. On my Monaco, the shore water runs through the pump. I imagine yours is the same way. I installed a new pump and and the problem was solved. Edited July 6, 2023 by Doug and Nicki Link to comment Share on other sites More sharing options...
vito.a Posted July 6, 2023 Share Posted July 6, 2023 If it's coming from the Aqua Hot enclosure you need to remove the upper half of the Aqua Hot stainless steel cover and see where it's coming from. These older Aqua Hot units have the copper tubing wound around the outside of the boiler. They tend to develop leaks which requires either replacing the tubing or replacing the boiler assembly. Good luck! Link to comment Share on other sites More sharing options...
Moiras Posted July 6, 2023 Author Share Posted July 6, 2023 I have not checked the aqua hot panel. I will have to look into that. I didnt think my city water ran through my pump but i didnt see a problem there but ill take a second look. Does it matter that i am not and havent used the aqua hot? Im having a bad feeling about this. Link to comment Share on other sites More sharing options...
vito.a Posted July 7, 2023 Share Posted July 7, 2023 This is what the underside of the boiler looks like. The copper tubing on the bottom is exposed next to the exhaust port. (On the newer Aqua Hot boilers, the tubing is on the inside of the boiler.) Any time you turn water pressure on to the coach (onboard pump or shore water) the Aqua Hot loop is pressurized. Link to comment Share on other sites More sharing options...
Moiras Posted July 7, 2023 Author Share Posted July 7, 2023 Oh boy. This may take a few days. We r currently on the road. Ill need to get somewhere before i tear into that. My exhaust port is on the drivers side. I havent peaked under there yet because of all the water. Just looking at the size and color of the drain, it looks like the top right drain in your pic. The leak is right next to the drain tube a inch or 2. Link to comment Share on other sites More sharing options...
Guest Ray Davis Posted July 7, 2023 Share Posted July 7, 2023 9 hours ago, Moiras said: Oh boy. This may take a few days. We r currently on the road. Ill need to get somewhere before i tear into that. My exhaust port is on the drivers side. I havent peaked under there yet because of all the water. Just looking at the size and color of the drain, it looks like the top right drain in your pic. The leak is right next to the drain tube a inch or 2. Until you can sort this out what I would do is I would refrain from hooking to the park faucet. Instead, I would use water from the freshwater tank and turn the pump off when not in use. Hopefully, this will minimize the amount of water leaking. 18 hours ago, Moiras said: Does it matter that i am not and havent used the aqua hot? Im having a bad feeling about this. IMHO it doesn't matter, I would go ahead and turn the aqua hot on when you need it. Your bad feeling is warranted, hopefully, it's just a feeling and not a bad boiler. If you really don't need the aqua hot right now, find your manoblock ( sp ) water manifold and see if you can isolate the aqua hot. BTW, IIRCC some units had a plastic fitting that will crack. I can't recall where to look, maybe someone will. Link to comment Share on other sites More sharing options...
Dr4Film Posted July 7, 2023 Share Posted July 7, 2023 (edited) 1 hour ago, Ray Davis said: If you really don't need the aqua hot right now, find your manoblock ( sp ) water manifold and see if you can isolate the aqua hot. Unfortunately the Aqua-Hot is not part of the Manobloc System. So it cannot be isolated. The only way to isolate the Aqua-Hot is to have a ball valve on the hot water line going INTO the Aqua-Hot boiler area. Edited July 7, 2023 by Dr4Film Link to comment Share on other sites More sharing options...
Guest Ray Davis Posted July 7, 2023 Share Posted July 7, 2023 44 minutes ago, Dr4Film said: Unfortunately the Aqua-Hot is not part of the Manobloc System. So it cannot be isolated. The only way to isolate the Aqua-Hot is to have a ball valve on the hot water line going INTO the Aqua-Hot boiler area. Thanks, Richard. Link to comment Share on other sites More sharing options...
JohnS2004 Posted July 7, 2023 Share Posted July 7, 2023 I have repaired a couple of leaking fittings that leaked out the drain hole, and a hose also. Mine is 23 years old and the pex clamps seem to be coming loose. Very hard for me to see, after I remove the covers. Aquahot antifreeze dripping on ground, or low fluid in overflow tank are my warnings...easy to remove my top and bottom covers. 6 Philips screws. Good luck 40' Diplomat, 600D01 aquahot Link to comment Share on other sites More sharing options...
waterskier_1 Posted July 7, 2023 Share Posted July 7, 2023 21 hours ago, Moiras said: I didnt think my city water ran through my pump but i didnt see a problem there but ill take a second look. Does it matter that i am not and havent used the aqua hot? Im having a bad feeling about this. Yes, the city water does run through the water pump. If you know you have issues with that, that is where I would begin. Remember that heating of domestic water (i.e., hot water at the sinks and shower) is performed by the Aquahot, even when you don't need to heat the coach. -Rick N. Link to comment Share on other sites More sharing options...
Bob R Posted July 12, 2023 Share Posted July 12, 2023 On the older aqua hot units there was a plastic drain fitting on the lower left of the unit that was notoriously known to fail. I replaced my drain fitting with a metal pipe with a valve to allow draining the coolant. There are plastic fittings used on the water in and the water out fittings that leaked. I replaced these with standard water supply flex connectors. The lower RIGHT of the aqua hot was where the drain fitting was located Link to comment Share on other sites More sharing options...
Moiras Posted July 14, 2023 Author Share Posted July 14, 2023 Well thank you guys, currently i am in a gravel lot and i cant get under the coach. I bought a selfie stick so i can take pictures of stuff in this coach. We are not hooked up to water and i havent been using the pump much. Its also very hot. So give me a couple weeks and ill get back to you all, i promise. Moira Link to comment Share on other sites More sharing options...
Moiras Posted August 17, 2023 Author Share Posted August 17, 2023 Ok, well it was not as serious as i feared. The leak was coming from the pressurized side of the pump where the clear tube to pex tube were connected. But i thank you all because i didnt know the aquahot was pressurized all the time. Or it couldnt be isolated. I think that sounds like a good winter project! You guys are the best! 1 Link to comment Share on other sites More sharing options...
Dr4Film Posted August 18, 2023 Share Posted August 18, 2023 So it had nothing to do with the Aqua-Hot at all. The leak was actually on the output side of the pump and running to an exit point. How is it that it was leaking when the pump wasn't pressurized? You may have an additional problem to solve that one. The pump gets water from a non-pressurized supply tank. Still confused. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now