Soundproof Bob

08:27AM | 10/24/03
Member Since: 10/15/03
10 lifetime posts
I get a lot of questions on how to quell (silence) the noise of a noisy pool pump motor or loud generator. The first thing you want to look at is how the pump is mounted to the ground. Is it lag bolted to a solid concrete slab, is it mounted to a concrete or masonry wall, or is it somply setting on the bare earth or on a wooden deck? If it is lag bolted to a concrete slab, you need to un bolt it and install vibration isolation pads beneath each leg or foot of the pump itself. You will drill a hole in each pad to the same diameter as the lag bolt itself, then purchase bolts that are at least 7/8" longer than the originals. Then simply bolt that puppy back onto the slab. You will be amazed at the amount of noise that is transmitted through a concrete slab and at how much quieter your pump is once you have installed the pads.
As a general rule, concrete is a very good soundproofer, however, if sound is transmitted directly into the concrete,the slab will carry (transmit) that sound quite readily.
Now, if this does not alleviate all of the noise or get it to tollerable levels, you will need to construct a box or enclosure to enclose the noisy pump. You will want to line the inside of this box with a sound blocking and absorbing foam mat. You'll need to leave some space at the bottom if ventilation is a requirement for the pool pump.
This same proceedure can be used to soundproof a gas emergency generator or even a camping generator, to keep from bothering your fellow campers thus making your campsite much more tollerable.
You can find tons of information on soundproofing a generator when you go to There is a wealth of knowledge on that website, and a great staff willing to help you with all of your soundproofing needs.

Soundproof Bob



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