Munya and Sarah use a system of pipes

Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!

Munya first went out to the shed to look for a leaf blower, whilst Sarah gestured to Alex about the stench in the lab that she had caused in a previous task. Munya returned empty-handed, so Sarah had to go and take another look in the shed for it. After finding the leaf blower (and apparently being overjoyed at doing so) she brought it to the lab, where Munya attempted to blow the feather whilst she wafted it with a guitar. After that didn't work, the two left the room to find other props. Sarah returned with several trays, and Munya returned with several pipes. They ended up creating a tunnel to the bathtub, through which they could blow the feather, using the leaf blower. They managed to get the feather into the bath in 24 minutes and 25 seconds, earning 2 points each.

(Written by Taskmaster Wiki contributors)