Thingiverse

Overflow Drain Muffler
by Thingiverse
Last crawled date: 5 years, 4 months ago
recently drilled my bio cube 29 and installed an overflow box with a 1" drain line, the drain was so loud going into the filter sock I could hear it on every floor of the house. this was my solution, and its reduced the noise going into my sump by at least 75%