dp.la/exhibitions requires lots of cache clearing to see changes

When Hillary and I are building and editing exhibitions on dp.la/exhibitions we have to clear the cache frequently in order to see the changes we are making.

It's hard to produce an example because the editing works fine, it just takes a while for edits to appear (like 12 hours or until we clear the cache). This is particularly a problem when Hillary adds captions which has to be done manually for each individual image. As she adds and saves them, they are clearly present in the dashboard view but don't appear in the public view (which you can imagine is annoying from a progress/editing point-of-view). There are ~40-60 captions per exhibition