View Full Version : Return Pump 40dB Quieter
coffee_snob
02/23/2015, 07:22 PM
Before:
https://dl.dropboxusercontent.com/u/22297144/75gTank/2015-02-13%2021.28.35.jpg
After:
https://dl.dropboxusercontent.com/u/22297144/75gTank/2015-02-23%2020.16.35.jpg
Simple new layout with extra hose, cuts noise in half.
Thought I'd share.
tkeracer619
02/23/2015, 08:11 PM
Just so you know, 40db is not half. It's actually ~1/13th of what it used to be if it was in fact a 40db drop. We have amazing ears.
Zero decibels (0 dB) is the quietest sound audible to a healthy human ear. From there, every increase of 3 dB represents a doubling of sound intensity, or acoustic power.
salty joe
02/23/2015, 08:27 PM
It might be a little quieter yet, if you replaced that block of wood with a vibration dampener.
coffee_snob
02/24/2015, 06:08 AM
It might be a little quieter yet, if you replaced that block of wood with a vibration dampener.
I tried that, seems to be quieter on solid base.
coffee_snob
02/24/2015, 06:09 AM
Just so you know, 40db is not half. It's actually ~1/13th of what it used to be if it was in fact a 40db drop. We have amazing ears.
I should have stuck with layman's description; about half as noisy as before.
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