How much dirt accumulates in 30 years?
My answer is generally so much that it can be ignored. You know, usually up on top of surfaces that are difficult to reach. And for short people, there are a lot of high surfaces that can be easily ignored.
At church, we have an area that no one wants to access except for one person, twice a year. That's the organ tuner, and for about five years he has told me how much dirt is accumulating around and on the pipes.
Now it's cleaned, and what a job. Each of the approximately 3,000 pipes have been removed, cleaned, and replaced. Even the hidden white wall at the top got a face lift. It took almost 200 man hours of work, but I can breathe easier now! Literally...
For anyone who cares, the tiny pencil sized pipes are grouped into fours because all four sound at the same time, played by one key. That gives the buzzy sound of acoustical overtones... like when a dish or bell vibrates because it receives vibrations from an alternate source. The four are meant to sound like several things vibrating.
|Pipes are removed from the dirty/dusty board.|
|And pipes are replaced in the same order as before, |
after being vacuumed (both the boards and pipes).