Waterworks (4): the sand filter building – filter aeration
The sound was recorded in the course of aerating the sand filter. Water from the settling tank where most suspended matter was…

The sound of polishing wood with sandpaper. The recording was realized in the National Museum of Agriculture and Agricultural-Food Industry in Szreniawa (Poland).
A wheelwright is polishing and smoothing the wood with the use of sandpaper. This activity is done before painting the wood. During the recording, carriage mudguard was being polished.
Recorded activity was performed by a trained craftsman. Tools are original and dates back to 1970s.
Sound recordist: Monika Widzicka
Photographer: Piotr Leszczyński
Video recordist: Piotr Leszczyński
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