Quote:
Originally Posted by Old Crows
I'd be about 98% certain that the 'oiling' of my regulators is not due to bad product. My LP sells a boat load of the stuff. Although the 'wrenches' at my local RV dealer mentioned about a week ago that the cause was likely do to the material used in the hoses, I'll accept that with a bit of skepticism.
Like many other problems, this one will likely go away and we'll not really know the cause.
I'd be interested in the design of the 'drainable' trap you mentioned.
!
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Both heavy end contamination and leaching liquid from
some rubber hose products is fact.
Contamination from LP suppliers is relatively common but certainly not universal and may be regional in nature because of the distribution system. Some people never see it. Ever. Some can't seem to avoid it.
I received a dirty load and knew it while it was being pumped. A leaky fitting at the pump was spewing vapor and a liquid that collected as a small puddle on the concrete. I later collected some from my low pressure line in the motor home. The oil never caused any problem and soon disappeared after the next load. (at another dealer).
The subject of oil leached from the hose is more entertaining. By nature it will be self limiting. As the oil is removed from the hose, the hose will shrink slightly and become stiff. Sound familiar? Recall maybe?
I personally do not believe that the oil we see and complain about is from the hoses. Unfortunately the average RV owner is not able to utilize scientific methods and the anecdotal information we get is not very useful.
Currently I am running new hoses supplied by a LPG jobber, not by Winnebago, and after 4 months of use NO oil has materialized in my system. What can be gleaned by this is. Not all hoses will decompose and drop oil. Mine do not. My last two loads of LPG were clean.
As to draining the condensate, the lowest point of the low pressure line will collect the most oil. On my Reyo 25Q, that point coincides with the hose coupling to the black iron pipe at the left lower corner of the bay that allows access to the propane fill and sewer dump line. A simple petcock at that point would be superior to just cracking the flare fitting, which is what I do now.
Again common sense and Occam's Razor (look it up) says that far more people are buying contaminated propane than are dissolving their hoses.
Phil