Vintage Tristars

[thumper84]

Hello. The vintage tristars are my favorite canister vacuums of all time- but they are too loud for me. I have a residential cleaning service and have stopped using them due to the decibels. Does anyone know if they can be modified? Can some sort of sound dampening material or spray foam be added to the interior?
Thx

 

[dysonman1]

If you put the "mushroom" HEPA filter on it, they quiet down to about half.

 

[thevacomaticiec]

Could be a bearing issue or dirty fan i know my c8 is louder than my cxl ..

 

[huskyvacs]

Was it this big filter?

 

[dysonman1]

That was the first HEPA filter for a Tri-Star. I called it the Microwave Popcorn Popper filter. The second, smaller and neater one, is called the Mushroom Filter.

 

[briguy]

Mushroom Filter

I believe this one I have on mine is the mushroom style filter.