If your koi pond has a dome in the water 10 metres tall, I think the neighbors might complain.
(In fact with my usual pedantry I note that if the column gets big enough the reduced pressure at the top will cause dissolved gases to escape, so the bubble at the top will be air and water vapor under reduced pressure. The reduced oxygen in the water will discourage the koi from visiting the top. It’s left as an exercise for someone better at gas physics than I am to work out what the tallest dome is in practice, that the koi would actually be able to make full use of.It’s going to be a function with water temperature and atmospheric pressure as variables.
2 Likes
