> You could even see the stream of water and feces rushing out everytime you flushed it. What you did was illegal. Boats are not allowed to discharge waste in

> You could even see the stream of water and feces rushing out everytime you flushed it. What you did was illegal. Boats are not allowed to discharge waste into water inland or at sea unless 10 miles out at sea (USA and I'm sure most other nations). If caught the fines are quite severe. You must flush into a holding tank which is emptied by vacuum while at port. OR discharge once far out at sea. Though since you rented this was likely operator error due to inexperience. Some boats have different plumbing systems with a Y valve that diverts to holding tank or overboard. Some boats have no Y valve so they flush directly into a tank that also has a macerator pump that empties the tank while at sea. The pump switch is usually on the dashboard OR sometimes in the bathroom and people mistake the macerator pump button for the flush button. Or they try to turn something on the dash and hit the macerator pump switch by accident. Next time you rent a boat please make sure you are familiar with the sewage system function. The rental facility will show you how it operates properly.