Pool vacuum cleaner

The standard pool vacuums sold didn't suit me because they have little pull due to their size and wide openings. I needed a vacuum cleaner that was just big enough, that was low and, thanks to the larger pull, would pick up small debris well, but especially the sludge from the bottom, which would also pass through the filtration (I vacuum the sludge with the filtration switched to waste). I have therefore designed my own model which is only 4 mm above the surface and has a decent draught as a result. The triangular shape allows easy vacuuming even in the corners of the pool or in round pools. The rounded feet make it easy to move the vacuum cleaner smoothly along the bottom.The vacuum cleaner attaches to a standard 1.25" (30 mm) diameter pool pole via a bracket and can be connected to the filtration with a 1.25" or 1.5" (32 or 38 mm) diameter hose.Printing:Due to the strength required, I recommend printing from PETg to at least 4 perimeters, and the safety spring and sa