Primer lines need to be silver soldered into their fittings. Using RTV to fix a leak is not acceptable and poses a serious fire hazard.
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/02/Fuel-Selector.jpg?w=218&h=150&crop=1 "Fuel Follies")
In Case You Missed It
The Home Machinist
Bob Fritz visited the TechShop workshop in Menlo Park, California, and got to play with lots of big, shiny toys that any homebuilder would covet.
Fisher Flying Products
Fisher Flying has been a fixture on the homebuilt scene for 30 years. With a new owner and a new home, the company—whose designs include the classic Dakota Hawk—is ready for a new generation.