I may be the only person on the list with a "modded" dishwasher but I'll pass it along in hopes it helps others. If you look at the consumer ratings one of the things you pay a lot of money for is quiet models 'cause everyone likes to brag about it when guests are over and such. But often lower models clean just as well at $150 less.
Last year, we replaced our dishwasher with a middle of the line Kenmore that was just as I described - highly rated for everything except noise. Looking at it when I got home, I realized the thing is essentially a plastic box that resonates when you spray water against the insides - like firing a hose into a 55 gallon drum. So I took off to the hardware store and bought 3 cans of that spray on expanding foam and 10 feet of self adhesive foam weather strip. There are two types - one that expands a lot and one that does not. Be sure you get the latter. Pulled the washer into the garage, sprayed down the plastic box taking care not to fire foam into obviously stupid spots, or on things that one day might need servicing. Then put the weather strip around the edges that mate with the counter and installed it. For good measure, I put weather strip around the metal plate that fills the space by the floor and put a chunk of foam under the unit that I had laying around - foam rubber.
Installed it as normal and the thing is dead quiet. You can barely hear the swish of water 10 feet away and for $12 I think it's quieter than even the super quiet models in the store.
DougM
Last year, we replaced our dishwasher with a middle of the line Kenmore that was just as I described - highly rated for everything except noise. Looking at it when I got home, I realized the thing is essentially a plastic box that resonates when you spray water against the insides - like firing a hose into a 55 gallon drum. So I took off to the hardware store and bought 3 cans of that spray on expanding foam and 10 feet of self adhesive foam weather strip. There are two types - one that expands a lot and one that does not. Be sure you get the latter. Pulled the washer into the garage, sprayed down the plastic box taking care not to fire foam into obviously stupid spots, or on things that one day might need servicing. Then put the weather strip around the edges that mate with the counter and installed it. For good measure, I put weather strip around the metal plate that fills the space by the floor and put a chunk of foam under the unit that I had laying around - foam rubber.
Installed it as normal and the thing is dead quiet. You can barely hear the swish of water 10 feet away and for $12 I think it's quieter than even the super quiet models in the store.
DougM

