The 32w pump i bought 5 months ago has developed a high pitch whine/chirp in the last month. what is it, and is it something i can fix?

Here is what I did (from my review on this item): 1. Tighten all screws (NOTE: it seemed to me all the holes in the aluminum casting where a bit sloppy, so I loaded each external screw with Teflon Tape, and reinstalled them). 2. Add Teflon Tape to the Brass nozzle barb (that also felt loose to me). 3. Remove the Rear Air Filter, and the 4 screws holding the Piston in place (See Picture). 4. Wrap some Teflon Tape around the ball bearing installed. It seemed to me this was where the rattle was coming from. I think the bearing is a little small, or there is more slope in the holes than needed. This cause a slight harmonic rattle. 5. Wrap tape (optional) on the screws holding both the rear plate and the air filter housing, and reinstall. 6. Run your pump and see if the rattle goes away. A couple notes, most people seem to pinch off their air supplies to only provide the air they need, but this pump isn't a pressure control pump, so it's going to run, regardless of how much air can flow. The better method is to bleed off the excess air you don't need. Take one of your 6 ports (or any other place you want install a bleed valve) and use that valve to bleed off the excess air. My method: 1. Connect all airlines and components you want. 2. Open any flow controls 100% 3. Open your bleed valve (either one of the 6 provided, or someone other valve) 100% 4. Turn on the Pjmp 5. Start to pinch off the Bleed Valve slowly until you get the air flow out of your connected devices. 6. Adjust any local flow valves as needed to balance out air between various components (i.e. Air Stones, Sponge Filters, etc.). 7. If needed close the bleed valve as required. There should be some air coming out the bleed valve, unless all your devices need 100% of the supplied air. 8. NOTE: If you have more air then you need, take your bleed air, and redirect it back at the pump, and use that excess air to help cool the pump. This will do two (2) things, keep your pump a little, cooler and reduce the load on the pump. If this helps, I would be curious to hear the results.

I've had the 32w size (950 GPH for a couple months and wish I'd returned it... I have it in the next room - inside a foam-dampened HD plastic bin, mounted on a piece of plywood inside the box that itself is put onto styro, and I can *still* hear it in the next room as I write this... through a closed door and another partially closed door. So yes, quite loud!

Has anyone else noticed this pump generating so much heat that it actively heats the water?

Mine is about 25 feet away, so no heating issue

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💨 Elevate your ecosystem with powerful, silent airflow — because your aquatic life deserves the best!

DURABLE HEAT DISSIPATION - Aluminum alloy plates and copper nozzles ensure long-lasting, cool operation
MULTI OUTLET VERSATILITY - 6 adjustable valve outlets support complex aquariums and hydroponic systems
POWER PACKED PERFORMANCE - Adjustable 20W-102W motor delivers tailored airflow for any setup
WHISPER QUIET EFFICIENCY - Operates under 60dB for peaceful, 24/7 oxygenation without disruption
BROAD APPLICATION SPECTRUM - Perfect for aquariums, ponds, fish farms, and hydroponic oxygenation needs

The VIVOSUN 317-1750GPH Commercial Air Pump features a robust 20W-102W motor with adjustable airflow from 18L to 110L per minute through 6 outlets. Engineered with aluminum heat-radiating plates and copper nozzles, it ensures efficient, quiet (<60dB) operation ideal for continuous 24/7 use in aquariums, hydroponics, ponds, and fish farms.

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Color	Black and silver
Size	15W
Style	15W-317GPH
Material Type	Aluminum
Power Source	Corded Electric
Included Components	Air Pump
Batteries Included?	No
Brand	VIVOSUN
Department	mens
Manufacturer	VIVOSUN
Product Dimensions	14.2 x 8.51 x 10.01 cm; 1.07 kg
ASIN	B0BG2BT9RX

VIVOSUN 317-1750GPH Commercial Air Pump 20W-102W, 18L-110L/min, 6-12 Outlets Air Pumps for Aquarium and Hydroponic Systems

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