The Budleigh correspondent who sent in the images of this mysterious tank now reports that it was removed sometime last week. Since it has gone, it seems it was not part of the proposed pump upgrade mentioned by Susan Davy in her letter to Cllr Henry Riddell. 

Owl’s correspondent is pretty sure that it is a separation tank that might be used to separate debris from cleaning water. So perhaps it was intended to be part of the Lime Kiln sewage pumping station cleaning operation. This was scheduled to require night closures of the car park, but is now reported to have been postponed because of “ongoing operations” in Exmouth.