I have a Beneteau 36CC with three water fixtures - Galley sink, head sink/shower, and stern shower. My current water pump is incredibly loud. It sounds like a machine gun firing whenever the pressurized water is turned on and literally wakes everyone up during a mid-night visit to the head. So, I have a couple of questions: 1) Has anyone found an effective manner of isolating the pump from the hull? Currently, the setup I have has the pump screwed directly into a piece of plywood which is then screwed into a stringer or something that is ultimately glued to the hull. 2) Has anyone replaced a pump on a similar sized boat with a pump they believe to be quiet? If so, what was the make, model, gpm, and pressure ratings? I do not want to install an accumulator (unless I really, really have to) and I don't want to hook up to shore water and by-pass my tanks. Thanks, Dave s/v Benediction
Replacing pressurized potable water pump
- Thread starter Dave20133
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Take a look at the new Shurflows. Note the rubber
feet. That's all you need. (the rubber feet) But get the whole pump. The newer four chamber (I think) designs are real nice. My buddies sister boat to mine, has the original pump from the '80s. It's mounted the factory way. (same as my original pump) Horribly loud. Brought back memories of my original installation. Relax, the dead on your boat will soon be sleeping the night away.
feet. That's all you need. (the rubber feet) But get the whole pump. The newer four chamber (I think) designs are real nice. My buddies sister boat to mine, has the original pump from the '80s. It's mounted the factory way. (same as my original pump) Horribly loud. Brought back memories of my original installation. Relax, the dead on your boat will soon be sleeping the night away.
Put a piece of foam rubber under the pump
Mounting it on 1/2" or more of foam rubber should quiet it down considerably.
Mounting it on 1/2" or more of foam rubber should quiet it down considerably.
I've heard that the variable speed
pumps are not as loud. Someone else will prob pipe up with recommended models. I thought my pump noise was due in part to vibration since it was mounted on the sink cabinet wall. Put some dense form between motor and cabinet wall. Made little to no difference, even with the little rubber feet that are installed on the motor mounting plate. Scott
pumps are not as loud. Someone else will prob pipe up with recommended models. I thought my pump noise was due in part to vibration since it was mounted on the sink cabinet wall. Put some dense form between motor and cabinet wall. Made little to no difference, even with the little rubber feet that are installed on the motor mounting plate. Scott
Scott,
Make sure your fasteners are isolated too. The screws commonly used to hold pumps in place CANNOT be in direct contact with the pumps mounting flange. Same principal as a motor-mount.
Make sure your fasteners are isolated too. The screws commonly used to hold pumps in place CANNOT be in direct contact with the pumps mounting flange. Same principal as a motor-mount.
Pull pump and inspect
Hi Dave - I don't know how old the pump is, but if it's not too hard to pull in out and inspect, sometimes you can find loose fasteners, feet, etc and by simply tightening them you can reduce the noise. Add rubber isolators and reinstall. I managed to get my pump much tighter, and therefore quieter by messing around with it a bit. Just a thought, Trevor
Hi Dave - I don't know how old the pump is, but if it's not too hard to pull in out and inspect, sometimes you can find loose fasteners, feet, etc and by simply tightening them you can reduce the noise. Add rubber isolators and reinstall. I managed to get my pump much tighter, and therefore quieter by messing around with it a bit. Just a thought, Trevor
Flojet VSD Sensor
Dave: We just installed a Flojet VSD Sensor 3.7gpm. I purchased it from Camping World for about $155 (check the Marine outlets, much more expensive). I sometimes cannot even hear it pumping (of course the wife says I'm deaf). The pump has rubber bushing/gromets that the screw goes thru (just like the old one) and you screw it directly to the bulkhead. Very quite and does not cycle like the old style pumps. Also they are suppose to consume less power than the old traditional style pumps.
Dave: We just installed a Flojet VSD Sensor 3.7gpm. I purchased it from Camping World for about $155 (check the Marine outlets, much more expensive). I sometimes cannot even hear it pumping (of course the wife says I'm deaf). The pump has rubber bushing/gromets that the screw goes thru (just like the old one) and you screw it directly to the bulkhead. Very quite and does not cycle like the old style pumps. Also they are suppose to consume less power than the old traditional style pumps.
rubber hose
i screwed 2 pieces of heavy duty rubber hose to a piece of scrap teak wood at the top and bottom of the hose. they hung down vertically. i then mounted the feet of the pump to the rubber hose. after that, i attached the wood pieces to the bulkhead under the sink. it must have reduce the noise by a factor of 2 or more.
i screwed 2 pieces of heavy duty rubber hose to a piece of scrap teak wood at the top and bottom of the hose. they hung down vertically. i then mounted the feet of the pump to the rubber hose. after that, i attached the wood pieces to the bulkhead under the sink. it must have reduce the noise by a factor of 2 or more.
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