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kmb1966's avatar
kmb1966
Explorer
Mar 02, 2021

Any option for re-filling MH Propane Tank from Small Tank?

We are in a campground where mobile propane delivery is not allowed. In order to refill the motorhome propane tank, you have to leave the park, drive to a propane place to refill the tanks. I visited the few places that refill the tanks and it is very difficult to get in and out of the facility in a 40' motorhome. Is there any safe option to refill the motorhome tank myself using a couple of BBQ style propane tanks? I've been googling around I find that there is a way to run my appliances off of the small BBQ propane tanks, but I can't seem to figure out if there is a safe way to ADD propane to my onboard Motorhome tank. I don't need to fill it up, I just need to get some in there before I leave out of here next month. Basically I want to know if I can somehow tank a blue-rhino style tank and somehow transfer it into the motorhome larger tank and bring the level from nearly empty to perhaps 1/4-> 1/2 full.
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38 Replies

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  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Mar 03, 2021
    wanderingaimlessly wrote:
    I'm not a specialist on this, but a question, Since many people run a portable grill from a low pressure line run from the RV system, Why , couldn't you attach a tank with a grill regulator to one of those fittings to basically back feed the system after turning off your main tank?



    vapor and liquid.
  • wanderingaimles's avatar
    wanderingaimles
    Explorer
    Mar 03, 2021
    I'm not a specialist on this, but a question, Since many people run a portable grill from a low pressure line run from the RV system, Why , couldn't you attach a tank with a grill regulator to one of those fittings to basically back feed the system after turning off your main tank?
  • chuckftboy's avatar
    chuckftboy
    Explorer
    Mar 02, 2021
    Just so you understand how LP is transferred from tank to tank, it is pumped as a liquid and never dumped into a tank. If you don't think that you could navigate your 40 foot coach into a facility, maybe you could arrange to meet a LP truck outside the campground and get a fill-up.
  • crawford's avatar
    crawford
    Explorer
    Mar 02, 2021
    What piaotuna You could add an extend-a-stay system and run from the smaller tanks. yes this is the only safe way to stay a longer time check it out.
  • MT_BOB's avatar
    MT_BOB
    Explorer
    Mar 02, 2021
    Not very safe,esp.if you are not familiar with transporting and hauling LP.Not very efficient,not having a pump system.And, if they do not allow a certified person and truck in the park, they for sure will not allow you to try something like this.Also, before you spend the money and add an extend a stay,check with the park,they may not allow a bottle (not contained", such as sitting beside your unit.If you have seen others in the park doing this,would be a good time to talk to management, as having a truck come in to fill units is way safer.
  • pianotuna's avatar
    pianotuna
    Nomad III
    Mar 02, 2021
    You could add an extend-a-stay system and run from the smaller tanks.
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Mar 02, 2021
    What you read is the only safe way. You can purchase a extended stay adapter and if you have a BBQ tank or the bigger cylinders you just install it inline and connect your other tank and you have propane.

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