Once Design Series 3]
This is the pump and related special.
self-priming pump]
jet pump]
sewage pump]
water pump controller]
First this way, then that way, well, that's it.
Finally, thank the previous company bosses for their guidance!

In this scene, a texture was casually pasted on the wall at that time. Later, looking at the whole picture, I unexpectedly felt like an oil painting, hh......