Hello,
For some reason hose does not switch modes, only working in suck mode (tank switches fine).
I was trying in single player, on (local) server, in survival and in creative modes and tried to change keybind, nothing worked.
Forge version is 36.2.2
Mod version is 5.4.3

Edit: problem is not with mods
Running Minecraft only with Forge and Backpack does not fix problem

Edit 2: downgrading Forge to 36.1.65 does not fix problem

Closing issue because I am a bit dump