Hey gang,
We have the P3 Nautilus system and for some reason we cannot fill the fresh water tank. I tried the PowerFill setting, and also tried to siphon water into the tank using Sanitize setting. Water just gushes out of the tank overflow drain. I can get water to go directly to the fixtures, but not the tank... At wits end. Any assistance is super appreciated!
0 ·
Comments
Are you certain that you have the drain valve to the fresh water tank shut?
The location is very near the overfill relief drain, so the water comes out around the same location.
With the fresh water tank valve open, water will immediately come out when you attempt to fill the fresh tank.
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
That is the low point drain for the cold water...which needs to be closed as well.
Look inside the Nautilus access panel, you'll see two small silver valve handles - one for the cold water (blue pipe) one for the hot water (red pipe). They both need to be closed - which is rotated 90 degrees relative to the pipe.
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
2020 Tacoma TRD Off-Road
And I didn't understand which blue pipe you meant in you post above, but having gone out and looked, you probably are referring to the fresh water tank overflow.
Like @manyman297 said, there is only one way for water to get to that pipe, and that would be a full fresh water tank, unless your camper is plumbed completely wrong (which I doubt).
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
It sounded like he tried that or maybe I misread and nothing came out?
2020 Tacoma TRD Off-Road
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
2020 Tacoma TRD Off-Road
The 2021 400 doesn't need the water pump on to fill the fresh water tank. There is a "Power Fill" setting on the Nautilus panel that the CS doesn't have. It allows the fresh tank to fill directly from a fresh water hose source.
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
Things like this typically don't just change out of free will. Something was changed or has been changed by someone and not put back to the proper function is my guess.
Please don't read into this as an attack on you or anyone else, we (myself included) typically cause a lot of changes that result in most of our problems.
Brad
2022 Black Series HQ19 aka "Cricket"
2021 F-250 Tremor with PSD aka "Big Blue"
Concord, NC
2021 T@b 320 Boondock "Mattie Ross" | 2021 T@b Nights: 239 | Total nights in a T@b 455 | 2022 Jeep Grand Cherokee L Overland | T@b owner since 2014
Anyone know how the fresh water tank inlet is plumbed? How could it be connected to the overflow outlet? This is a head scratcher to me...
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
And like @ChrisFix said, open the drain...and I'm not trying to be condescending as I'm sure you've already done this. Just want to make sure we're not missing something.
One more thing. I'm not sure how the Nautilus is plumbed but I wonder if there's something going on with a bypass valve or something. So somehow the inlet is bypassing the tank fill and redirecting its way to the overflow somehow? But I don't even know if that's possible.
2020 Tacoma TRD Off-Road
SW Montana USA
I also thought about the Alde drains, but I'm pretty certain their drain tubes are clear vinyl, not blue pex...so I moved off that idea, but it is certainly worth looking at in this situation.
It really is the only drain valve that hasn't been discussed, and water will come out here when filling the fresh tank if they are open.
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
Yeah, I checked & found the 2 Alde drain valves do indeed drain out clear vinyl tubes, as you described. I thought maybe they were plumbed into that blue pex FW tank overflow line, but no.
And on another note, on "powerfill to tank", water went directly into my FW tank & didn't come out the Alde drain, even though I had it open. On "powerfill to fixtures", it came out the Alde drain right away. I'm trying to understand all that too.
SW Montana USA
Oh, that actually makes sense. "City water" is what I think you are referring to by "power fill to fixtures"...and that would indeed bypass the tank and just go to the fixtures...with the Alde en route to them, hence the draining.
Makes sense the Alde doesn't drain when power filling the fresh tank, as it would need to be pumped from the fresh to the fixtures (again, with the Alde en route) for that to happen.
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
2018 Nissan Titan Pro 4X "Big Bird"
Leadville Colorado
That could create the scenario of a full fresh water tank, yet no draining when opened...
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
2023 Honda Ridgeline RTL-E with Redarc Trailer Brake Controller
2020 Tacoma TRD Off-Road