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Here is an update on my Fernco diesel soak test. I placed the remnants of my Fernco coupling trimming in a jar of diesel on 18 March 2018. I just found the jar, while looking for some other items in my shop. These parts have been submerged in diesel for almost 6 month. The plastic has hardened to the same hardness of PVC pipe, but have not become brittle. I could not bend the parts by hand, but could bend them with pliers. The parts did bend with pliers, but did not break. I suspect the diesel is leaching the plasticizers out of the PVC. I will let the rest soak and will check again later to see what happens.
Got to kinda disagree here. It depends on where your gen set is. If it's planted on a concrete pad, no, it's not going to get diesel on the rubber coupling. But in the milatary, EVERYTHING, is supposed to be deployable. When a gen set is mounted on a trailer, rolling down a bad road, or trail, (this was my final test to any trailer mounted set after working on the fuel tank and attached components) will soon let you know when you have a leak. And the practice of Filling the tank till its full up to the cap, often kept this part not just wet, but soaked, for months on end. JP-8 tended to quickly make all rubber parts get brittle. The Army tends to train very often, and long. In places that are very challenging. Then comes deployments. So what I am saying is this. If your unit is trailer mounted, it might pay to install a better quality part. Pad mounted, you might get away with something of a less quality, IF you don't over fill the tank and leave it over full for months, or years(?) over full.
I know this is an older post (bumped for the Fernco info) but hoses are available in the classifieds readily. Or at least till the batch I ran runs out, doubtful I will run again.
Same fitting, only yours didn't come with the steel band.
