WISA Audio Pump for ET2 tonearm

Wow, this is pretty incredible. I had one of those break mid LP just three weeks ago! The racket of the pump housing vibrating against the mounting plate was something! After I determined the source of the racket, another one broke. I turned it upside down and placed it on a stack of soft fabric for the time being. If I find replacements, I will let you know. You may want to ask this question in the ET2 tonearm thread. Someone there might know where to get replacements.

I found replacements at my work years ago. I believe they were bumper/stops for metal door/frames?

I always look at things when I'm out at hardware stores, and try to reimagine other uses for them. You could just put a mouse pad underneath it or the stick on clear vinyl dots?

If the OP's pump is like mine, the rubber pieces are o-rings.  It's just a matter of finding the right size.  I have a pretty good local o-rings source, so I will see what I can find.  This is what the bottom of mine looks like.

http://usr.audioasylum.com/images/y2014/10/121198/altec_015.JPG

Mine was different. It had 4 holes to accept some sort of rubber feet. Thanks for pointing this out.


Upon thinking about it, the 4 holes in the metal frame that are present in your picture....This is where I placed the rubber isolators I found as this part of the structure is lower and is what comes into contact with whatever the unit is placed on. My unit had the O-rings but they were clear and had not broken down. The O-rings allow for the unit to be isolated from the frame structure.

My WISA pump looks very similar to the one in the web link above.   I am looking for the four green O-rings.I just came back from ACE hardware.  In the plumbing section they have 3/4 x 9/16 x 3/32 #11 O-ring. from DANCO Inc.I tried on my pump.   A bit too noise and an option is everything else fails.  Thank you.