Here is mine: A school had moved a studio upright out into a hall so I could work on it while the class room was being used for an after school activity. The piano was one of the dirtiest I had ever seen. I decided to vac it. I use a Rainbow which uses water for its filter. The motor seperates from the bottom resevoir, you fill the resevoir up and reattach it to the top and away you go. There was a folding table in the hall which I put to use. I pulled the action and placed it on the table and vacuumed the action and the case. I normally don't blow out pianos but no one was around and this instrument was still pretty dusty. After blowing out the piano I placed the Rainbow on the table in front of the action and removed the hose. I let it run like that so it would help clean the air by pulling in the air born dust into the water filter. With the vac humming away I started to tighten wippen screws. A student came out of the adjacent room and looked at the vac which I couldn't see because of my position and then she looked at me - kind of funny. I said to myself "what was that all about." I peeked up over the action to take a look at the vac and it was slinging mud all over the piano. I had sucked up so much dirt that the water level had come up and had no where to go except out the exhaust vents. What a mess. It took me about 45 minutes to clean it up. Doug Mahard
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