Diatom sampler - prototype 1

One of my colleagues is studying diatoms in lakes in Antarctica. However, normally sampling diatoms involves getting wet, which is not terribly fun in Antarctic conditions. To get around this, we developed this sampler, allowing users to scrub and siphon diatoms from almost 1m below the surface, without coming in contact with the water.

In terms of hardware, it's quite cheap to make, requiring a handful of m3x20mm bolts, and 2 m5 x 75mm bolts. Stainless steel hardware is recommended. The pol