Water for toilet flushing

We’re camping and our toilet has been operating fine. But all of a sudden it has stopped swirling water. Our fresh water tank is 2/3 full. We’re new to the 320, so any recommendations on how to troubleshoot would be appreciated.
2022 [email protected] 320 CS-S Boondock
2018 Nissan Frontier 4x4
SW Ohio


  • BaylissBayliss Member Posts: 1,127
    edited May 13
    @Buckster, when you say the toilet "has stopped swirling water," do you mean that no water is entering the toilet bowl when you pull on the flush handle?  Is there any flow of water, even if just minimal?

    Does water come out of the kitchen sink when you open the water valve?  Assuming it is, then the pump is working and the issue is not likely due to a problem with the pump or a blown fuse, but do you hear the water pump cycling (or attempting to cycle) when you pull on the toilet flush handle?

    Also, just to be clear, since you say that the fresh water tank is 2/3 full, is it correct to assume that you are relying on water from the fresh water tank and not connected to a campground or other water spigot as your water source?
    2019 [email protected] 320 S Boondock Lite2007 Toyota Tundra 4x4
    (Alde: 3020; Refrig: Isotherm Cruise 65 Eleg; Battery: BB 100Ah LiFePo4; Solar: Renogy 100Ah Suitcase; Victron BMV-712; Pwr Cntr: PD-4135KW2B; EMS: PI-HW30C)
    Greg & Marlene (Tucson, AZ)

  • Maxcamp8Maxcamp8 Member Posts: 56
    Is pump on and keeping pressure?  Our 2021 320s has air leak but not water leak at more than one pex compression fitting.  We have to reprime pump intermittently.  Water bottle and short 3/4 inch hose to the manifold Sanitize fitting.  Pump water in. Shut pump switch back to boondock mode, cycle pump until pressurized.  A real nuisance once or several  times a day when on the road.  

    2021 T&B 320S Boondock/ Tacoma 4 cylinder truck
  • BucksterBuckster Member Posts: 30
    Thanks for the responses. I’ll ask a silly follow-up question? Does the water pump need to be on for the water to come out and swirl around the bowl? I turned the pump on this morning and everything worked flawlessly. We had been attempting to “flush” in the middle of the night without first turning on the pump. Could that have caused the issue?
    2022 [email protected] 320 CS-S Boondock
    2018 Nissan Frontier 4x4
    SW Ohio
  • Sharon_is_SAMSharon_is_SAM Administrator Posts: 8,418
    Yes.  When you boondock you need to turn on the pump to use any water.  Remember to turn off the pump if you leave your campsite.
    Sharon / 2017 [email protected] CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Denny16Denny16 Member Posts: 4,276
    edited May 14
    A home toilet, and some cassette toilets have a reservoir with water in them to flush the toilet.  However, the TaBs and most RVs have toilets that are directly connected to the trailer’s water system to flush the waste.  So when not connected to City water, you need to have the water pump on to flush the toilet.

    A water pump switch in the washroom would be nice to allow turning the pump on and off at nighttime.  
    2018 TaB400 Custom Boondock,  Jeep Gladiator truck, Northern California Coast.
  • YanniLazarusYanniLazarus Member Posts: 218
    By the way... turning on your pump, letting it run until it shuts itself off, then shutting off the pump switch leaves enough pressure in the water system for quite a few "flushes" - likely enough to get through a few night time uses without cycling on that noisy pump. The "on-suite" bedroom isn't really that far from the bathroom, noise-wise...
    Yanni Lazarus 2020 [email protected], 2018 RAV4 Adventure, Central CT
  • VictoriaPVictoriaP Member Posts: 1,225
    Alternatively, if the pump is likely to wake a sleeping partner, leave it switched off & keep a gallon jug of water in the bathroom. Open the valve & use the jug to rinse down the contents. (Many do the same thing using RV antifreeze during winterized camping.)
    2019 320s BD Lite, white with blue (“Haven”)
    2015 Subaru Outback 3.6r (unsafe 200lb tongue weight limit until 2020 models)
    2020 Subaru Outback XT
    Pacific NW
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