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Old 01-21-2013, 03:48 PM   #1
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Longer propane hose...

So, I need to replace the propane regulator and hoses on our camper. I'm considering getting one much longer than needed - that way I can easily hook to a third tank, for example, if we ever get a 100lb tank to provide heat during the winter.

Does this idea make sense? Are there any pitfalls I'm not aware of? For example, do the 100lb tanks have the same connections? Any problem with the longer hose?

Thanks in advance!
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Old 01-21-2013, 04:06 PM   #2
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Use a quick connect 15' lpg line for the Honda, don't see why it wouldn't work for the trailer.

Bob
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Old 01-21-2013, 05:43 PM   #3
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You do want to be careful of very long high pressure propane hoses (from the tank to the regulator, not the low pressure ones after the regulator). From what I have read somehow liquid propane can accumulate in the hoses and block the flow of what should be high pressure vapor to the regulator. Now, I am not sure just how that happens, but I have read about 5th wheel campers with two tanks, one on either side in compartments. One has a long hose to the regulator. If a dip occurs in that hose, the propane flow from that tank can stop.

I have not had any personal experience with this, I only recall reading about people who had that issue. Maybe someone else can chime in here. It also seems that there was some problem with the safety system on the tanks and a long hose. If turned on fast, the tank would lock out, thinking it was seeing a massive leak when in fact it was only filling the long hose.

You might check on the connections on the new 100# tanks to see if they now have the large Acme thread on the outside, like the smaller tanks now all have. I have not looked lately. The old ones used to use the left hand thread smaller valves. I don't know if that changed when the smaller tanks were required to use the new valves. In other words, is a 100# tank (20 to 25 gal) considered a large tank or a small tank in the regulations. Again, someone here may know.

If you have a regulator at the tank, like Robert Cross shows, there should be no problems with the very low pressure gas after the regulator. You can also use the quick disconnects he mentions on the low pressure side.
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Old 01-21-2013, 06:15 PM   #4
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Thanks for the advice. The concern about pooling is the type of thing I worried about. I'll stick with the regular hose lengths and if I ever do need to hook up a larger tank, I'll worry about it then.

I'm not looking to modify the propane system in the camper at this time (well, at least, not beyond the regulator and tank supply hoses). It sounds like the quick disconnect setup would require a second regulator, basically right on the tank, with another quick-connect in the system beyond the camper's regulator, correct? Not being an expert on propane, I'm not sure I want to attempt alterations.
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Old 01-21-2013, 07:07 PM   #5
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Originally Posted by Skater View Post
Thanks for the advice. (snip) It sounds like the quick disconnect setup would require a second regulator, basically right on the tank, with another quick-connect in the system beyond the camper's regulator, correct? Not being an expert on propane, I'm not sure I want to attempt alterations.
Yes, second regulator and a cut in T on the lines from the current regulator to the rig. That is not a very difficult thing to do.
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Old 01-22-2013, 07:26 AM   #6
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Yes, second regulator and a cut in T on the lines from the current regulator to the rig. That is not a very difficult thing to do.
Now that I think about it again, it doesn't seem that hard. But since I don't need it now, I'll wait until I do.

Additionally, part of the reason I'm replacing the regulator and hoses for the tanks is that I sometimes smell propane in that area, so something up there is leaking a little bit, and the age of the regulator and hoses makes them the most likely culprit (the hoses are brittle - I'm afraid they'll break on me one of these days while I'm changing a tank). I'd rather replace the bad parts and confirm there is no leak before altering the system further.
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Old 01-22-2013, 11:56 AM   #7
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I'm not saying that it's not worth replacing your regulator and hoses.
Another possible place for the propane leak is those new OPD valves several people have had some propane come out of them between the time they got them filled and when they used some propane. One guy said he was told the valve was designed that way to let excess pressure out when the propane expands to prevent explosions.

Of course some say that it's because the tanks were overfilled, while others say the whole point of the OPD valve is so the tanks can't be overfilled.
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Old 01-22-2013, 12:03 PM   #8
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Another possible place for the propane leak is those new OPD valves several people have had some propane come out of them between the time they got them filled and when they used some propane.
Thanks. In my case, we've only noticed the propane smell when the bottles are open and the system is in use. I've never noticed any smell/leak/etc. when they're off and disconnected. So I'm going to go with the lines are probably leaking.

In fact, the hoses are brittle enough that they can basically stand upright in the position they're normally in, even without the tank present. I probably should have done this replacement the day after I bought the camper.
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