“My new club has several amateur built Jodels. None of them have any fuel drain. They never had issues.”
After a wet night outside at Glenforsa, our DR1050 had water in the rear tank. It formed orange globules with the leaded 4* then in use, as well as the water drained. (May 2000)
I kept a sample of the drained globule mix, and showed it to an ex-oil company chemist. No explanation, maybe some sort of wax. The globules remained in the sample for over 9 months at room temperature, then disappeared.
The rear tank inlet was on the vertical fuselage left side.
