Tetra Whisper Aquarium Filter Pump Cover

thingiverse

My daughter had several fish get stuck in the bottom of the Tetra Whisper Aquarium Filter 4-gallon pump because there was a single large hole in the bottom of the filter where the water is sucked into the pump. This new cover solves that problem by spreading the intake across a larger area with many holes. This is a remix from another design and corrects hole placement to maintain the low pressure location at the center of the impeller and allow the high pressure to remain at the outside of the impeller blades to maintain efficiency. This required extending the guard away from the impeller inlet, which is the original size. I printed this part with the guard (the part with holes) face up and used supports (touching buildplate only) for the inner section that goes inside the pump.