Forum Discussion

FireGuard's avatar
FireGuard
Explorer II
Mar 30, 2017

Longest time before emptying black tank?

I'm posting here as I figure most full timers or boondockers have 5th wheels.
I have a 21' Toyhauler with 58 gal holding tanks and keep it on my 5 acre lot as I develop and build.
I have a water supply and can dump the Grey on the ground but I only spend 1-2 nights a week in it and only use the toilet in the morning and once or twice at night as I water the trees when I'm outside working.
I could probably go a couple of months before filling it but curious if there is a point where it gets nasty.
I haven't noticed and smell or issues so I'll wait until I take it camping and dump before bringing it back up.
Thanks.
  • Suggest you only use LIQUID tank additive.
    Packets & tablets have been known not to dissolve.


    C.B.
  • djgarcia wrote:
    FireGuard wrote:
    I'm posting here as I figure most full timers or boondockers have 5th wheels.
    I have a 21' Toyhauler with 58 gal holding tanks and keep it on my 5 acre lot as I develop and build.
    I have a water supply and can dump the Grey on the ground but I only spend 1-2 nights a week in it and only use the toilet in the morning and once or twice at night as I water the trees when I'm outside working.
    I could probably go a couple of months before filling it but curious if there is a point where it gets nasty.
    I haven't noticed and smell or issues so I'll wait until I take it camping and dump before bringing it back up.
    Thanks.


    While normal RVing in various sites and RV parks, I can go 8-10 days before dumping.


    Wow, 8-10 days? Seems a trip to the doctor is in order.
  • The solids will settle to the bottom. I would not go longer than two weeks.
  • C.B. wrote:
    Suggest you only use LIQUID tank additive.
    Packets & tablets have been known not to dissolve.


    The packets dissolve just fine......IF you open the packet and pour in the crystals. ;)
  • Cummins12V98 wrote:
    The solids will settle to the bottom. I would not go longer than two weeks.


    :h There are sinkers and there are floaters :B depends on your diet.

    Some places still allow cess pools, some do not. I bought a place that had a cess pool for 30 years but when sold had to be up graded to a septic system.

    Check with your local county offices.
  • I live in Santa Clarita, and if we can smell you here it's time for you to dump.
  • I bet you could call a porta-potty company and have them come empty your tank for pretty cheap, if necessary.
  • DavidP wrote:
    djgarcia wrote:
    FireGuard wrote:
    I'm posting here as I figure most full timers or boondockers have 5th wheels.
    I have a 21' Toyhauler with 58 gal holding tanks and keep it on my 5 acre lot as I develop and build.
    I have a water supply and can dump the Grey on the ground but I only spend 1-2 nights a week in it and only use the toilet in the morning and once or twice at night as I water the trees when I'm outside working.
    I could probably go a couple of months before filling it but curious if there is a point where it gets nasty.
    I haven't noticed and smell or issues so I'll wait until I take it camping and dump before bringing it back up.
    Thanks.


    While normal RVing in various sites and RV parks, I can go 8-10 days before dumping.


    Wow, 8-10 days? Seems a trip to the doctor is in order.


    He has VERY GOOD plumbing!!