its a very good pump... but the noise factor (wow) way to noisy...can any one tell me how to cool down the noise? please help!!!!!
175438
I put mine inside a cooler with a hole cut for cord. Insulates noise and keeps out of weather since outside.
175439
Mine is hung with cotton clothesline, just one strand simply tied around the body of the pump. I understand hanging it from a bungie cord or jumbo rubber band can reduce the vibration even further. Ensure that all your air outlets are in use or turned off. I have found the overall noise is greatly affected by which air stones are used. Mine is most quiet with the small 1" stones. If the air stones rest on a hard surface they can cause a lot of extra noise. Try holding the stones floating in the water to see if they are a source of noise and if so, arrange them so they don't rest on a surface that increases their noise. Sometimes even the air lines can cause a rattle when resting against other surfaces. You can follow the air line with your fingers to see if there's any place that's vibrating against something, and if so secure the air line with tape or whatever.
175440
Perhaps the problem with the noise is the surface the pump is placed on causing a drumming effect. Try putting the pump on a soft terry cloth towell and see if that helps with the noise. Or put your ear plugs on. I use mine out side to brew my compost tea for garden use and leave the pump in the shed. If you put the pump in a insulated box it will probabley heat up to much and seaze up. Thats all I have for you. Best to you. ED
175441
i have 3, i put mine on a short table the higth of the buckets, and thier sittin on an old mouse pad, them thick rubber ones. can hear them :)
175442
Stuff a little cotton in the intake. Most of the noise is from the intake chamber resonating.
175443
The only way would be to build a wooden box with some holes in it and line with acoustical foam to absorb the sound.I gave the one I bought to a friend because it was so noisy
2283838
I have not had a problem with mine. Did you check out the video's on how to clean the pump? That might help.
1354324
It has a different sound. Instead of a low freq. pump noise, it has a high frequency motor noise. So, it is relatively quieter but higher frequency.
503467
The noise I experienced sounded like the unit was under water. It was so annoying I didn't want the thing on. I finally figured out that they build all these units now to not drain water in between the compressor fan and condenser coil in the back of the unit. The compressor fan than using a sling blade to slosh the water up on the condenser coil cooling it. Although this makes it slightly more efficient, I couldn't stand the noise. One carefully placed drilled hole in the back right in front of the condenser coil and the noise is now gone. The unit is finally super quiet again (as far as window air conditioners go. The noise I experienced sounded like the unit was under water. It was so annoying I didn't want the thing on. I finally figured out that they build all these units now to not drain water in between the compressor fan and condenser coil in the back of the unit. The compressor fan than using a sling blade to slosh the water up on the condenser coil cooling it. Although this makes it slightly more efficient, I couldn't stand the noise. One carefully placed drilled hole in the back right in front of the condenser coil and the noise is now gone. The unit is finally super quiet again (as far as... » Read More The noise I experienced sounded like the unit was under water. It was so annoying I didn't want the thing on. I finally figured out that they build all these units now to not drain water in between the compressor fan and condenser coil in the back of the unit. The compressor fan than using a sling blade to slosh the water up on the condenser coil cooling it. Although this makes it slightly more efficient, I couldn't stand the noise. One carefully placed drilled hole in the back right in front of the condenser coil and the noise is now gone. The unit is finally super quiet again (as far as window air conditioners go. « Show Less
638098
Even at n6 volts it is noisier than I would want in my office, let alone bedroom. I also bought the model 160-8 Leisure Components unit (6-12 volt also) Much less noisy, but still noisier than a fish tank pump I used to have in my 15 gallon aquarium
994330
This pump is louder than some. But it shouldn't get louder when it's mounted, sound like it may be loose and vibrating. I can hear the pump with the engine off, but barely.
960755
My pump is in the basement. You can hear it but it becomes background noise. If you are looking for a silent pump, good luck!
1831104
Hi Kara, The Spectra 9 is an amazing little pump! It will fit anywhere and has so many features! But, because of it's size, I wouldn't say it is the quietest of pumps and it isn't the loudest of pumps. You will be able to hear it but it definitely isn't obtrusive! If you want complete silence with your pump, I highly recommend the Spectra Dew 350 or the Spectra S2. These are hospital grade pumps and, although they are a bit bigger(not TOO much), they are really efficient and quiet. Hope that helps. Let us know if you have any more questions. THANKS!
2149878
none of them are particularly quiet in my experience with a usual rough vibratory tone made worse if they are operating under any back pressure. Run it free in a bucket and see how it sounds. If still loud then that's the sound of the pump.The maxijets are worse
125487
The sound isn't bad. But it is a pain in the ass due to the filters & my pump failed in a week. You have to buy filters & brushes to clean. Do the simple thing. Get a bowl from Wal-Mart. Top it off every day. Scrub it clean on Saturday.
1900001
Pump does make some noise but not audible to neighbors.....decibels??? Call an audiologist for that answer....
1228204
A lot louder than a (good) sump pump. It's a small impeller that has to spin really fast to move the fluid. Not so loud that you need earplugs, but not the type of thing you'd want running in the next room if you were trying to sleep.
841455
just installed it. VERY quiet and it seems to working great. Make sure you wire it before plumbing it, small area inside the pump housing to connect the wires and it is easier to do so when you can move the pump.
1188865
I had two Barnes Pumps SP50AX in a sump pit in the basement. I replaced one of them by a Zoeller 98. I did not hear the Barnes from my bedroom. I DO hear the Zoeller. It doesn't prevent me from sleeping. But it is definitely noisier.
960753
Ours is extremely noisy when running. We have a basement home theater in the room adjoining the utility room where the pump is located, and it's extremely unpleasant if the pump is running and we're trying to watch a movie. And that is with the utility room door closed.
1549114
It's as quiet as this type of air pump gets. Not to say there isn't a little hum, but it's not obnoxious at all. The real sound problems are with the "commercial" type air pumps. They make it sound like take-off is imminent. I've used both types so I have first hand knowledge of the sound they produce. Hope this helps a little. West from Florida
1634286
I use it as a submerged pump. Very little noise because it's under the water. Good luck.