Hi Max,
pulled the float switch out today and I am working on setting the switch above the water with extended floats down into the water. No way could I make this setup work if I didn't have this magic casting cement that I get from Temu. I can set all things up in plastic glue it together and it holds. Yesterday I had a plastic fuel bowl off a 207cc Tecumesh motor where the fuel stub on the bowl had been broken off. I drilled into the bowl a max of 3mm and used this adhesive to stick a bit of steel tranny line onto the bowl. This morning I had the bowl in the ultrasonic cleaner and even with the different materials, plastic/steel and expansion rates it is still as solid as a rofk and I was able to push a fuel line on it and off without the slightest sign of movement. Brilliant stuff