Fresh water pump anti vibration mount

[amanphoto]

I’m putting in a new pump for the freshwater system on the boat. I am looking for recommendations for a vibration resistant mount or vibration dampening mount. Any suggestions?

My current mount is a scrap 1 inch piece hose that they mounted pump to. There has to be something better.

I am also adding a accumulator tank into the mix for less pulse. This is why I need a new mount.

[amanphoto]

Current mount.

BFC427F7-0046-4254-8721-8B284C237C71.jpeg

[Midnightsun]

I am placing a sheet of "kneeling pad rubber" for lack of the correct word found at most large surface hardware stores under my new AC installation. Just seems like the perfect vibration reduction material IMHO. https://www.renodepot.com/en/kneeling-p ... ewQAvD_BwE

Another method used to reduce noise is a short piece of flexible hose. https://www.amazon.ca/SHURFLO-94-591-01-Pump-Silencing-Kit/dp/B000WN5F96

[bud37]

Source of the post My current mount is a scrap 1 inch piece hose that they mounted pump to.

That , believe it or else is one of the best methods, usually suggested. They had some upgraded thicker rubber pads with the newer pumps.

[tomschauer]

Your current mount can be the best, BUT, I would use 1 1/4" reinforced clear vinyl hose. The white hose doesn't have enough "give" to silence your pump. Also a short piece of the same stuff, but proper diameter and some slack (a full loop if you can) on the inlet and outlet of your pump will make it nearly silent.

The 1 1/4" gives you room to put nuts on the pump bolts inside the hose.

[amanphoto]

Source of the post Also a short piece of the same stuff, but proper diameter and some slack (a full loop if you can) on the inlet and outlet of your pump will make it nearly silent.

Please elaborate on this part. I don’t understand what your describing.

[RGrew176]

Adding the accumulator will make a big difference. Just experimenting on my boat a couple seasons ago I bypassed my accumulator and definitely did not like the effect.

[Viper]

Keep it simple. Your current setup is the best method IMO. I've tried few things and it seems to work best. The idea is to isolate the fasteners from contacting both the pump and the mounting surface. A single fastener on both surfaces will transfer noise, vibration, etc. I agree with Tom in that the current hose isn't the best choice. Something more pliable is best. The vinyl hose Tom mentioned is good and while it may collapse a bit over time, it'll still do the job. Try to get a good marine grade hose as it will cope with all the nasty stuff in a typical bilge. An accumulator won't stop the pump from vibrating but it will decrease the number of times a pump cycles. Either way, the best you can hope for is to minimize the noise, chances are you won't get rid of it completely.

[Sadey]

Can any of those that have added an accumulator share the part number please?

[Viper]

Source of the post Keep it simple. Your current setup is the best method IMO. I've tried few things and it seems to work best. The idea is to isolate the fasteners from contacting both the pump and the mounting surface. A single fastener on both surfaces will transfer noise, vibration, etc. I agree with Tom in that the current hose isn't the best choice. Something more pliable is best. The vinyl hose Tom mentioned is good and while it may collapse a bit over time, it'll still do the job. Try to get a good marine grade hose as it will cope with all the nasty stuff in a typical bilge. An accumulator won't stop the pump from vibrating but it will decrease the number of times a pump cycles. Either way, the best you can hope for is to minimize the noise, chances are you won't get rid of it completely.

I had mentioned vinyl hose in the above post but you can also use PVC hose as long as it's the more flexible type rather than the rigid sanitation hose you currently have. Really depends on the design. Some PVC hoses are more flexible than vinyl and some vinyl more flexible than PVC. The hose you have now is typically a combination of both as they each have desirable qualities for that application.