Deletion of Pond air pump

Comment: The topic is quite respectable and just needs work in accordance with our |editing policy, which is to improve such articles, not to delete them.  For an example of a substantial source which covers the topic in good detail, see ''http://books.google.co.uk/books?id=Sz4RYEyH5DsC&pg=PA307 Pond aquaculture water quality management
Stance: keep
Cited policy: Wikipedia:Editing policy (WP:IMPERFECT)