Product review (1 stars): Very loud and very annoying for small office
I purchased this for my office and it makes an awful gurgling noise.  I called the company and they told me this was normal.  I have had it for less than a week and am returning it due to the noise.  I saw reviews had mentioned the noise but others said they didn't notice so I thought I would give it a try.  Very loud and very annoying for small office.