Hey all. So I have only owned my grobo for a few days. I named it Farm-assist, and I am very excited to reap the fruits but I was very disappointed with how loud the air pump was. I don’t know if my pump was defective and thus louder than others who claim they can barely hear theirs but it was working just very very loud. For those who might have the same issue I thought I’d share my solution which was easy to install and super cheap. Below is a link to a youtube video I posted with the beginning of it being the grobo right out of the box and loud and then post air pump replacement… link to actual pump I used in the description of the video.
Pump that I found to be the quietest.