The reason is that a prop is most efficient in the upper down-moving quadrant of its rotation between noon and 3 oclock for a right-hand propeller and so creates.

Pontoon leaning to one side. Last fall just a few weeks before the end of our boating season here in Maine we purchased our first pontoon boat. It is a new 2018 Sylvan 8522 Mirage tritoon 34 with a Merc 150. Pontoon Boat leaning to Port Side 14 Post by HandymanHerb Mon May 21 2012 1020 pm Some pontoons have a one inch opening at the very bottom of each chamber so you can drain it out the one back drain so it will allow a certain amount of water in all of them but still stop it from sinking with trapped air.

You can hear he water if you pull it out and do a startstop in the parking lot. I just had my left pontoon repaired and I also have a 99 22 footer. If you have the mast leaning to onside that can be the start of your problem.

A misaligned trim tab is not the only factor that can cause a boat to lean to one side while underway. My pontoon boat is leaning low to the water in the back. This bow down attitude makes the boat ride too much on the front V.

However the lean is usually to the left port side. With that amount of lean I would say water in toon. Typically these are only set accurately with cable steering where you will get a pull to one side the same way as steering in a car pulls when the wheels are out of alinement.

Another critical aspect of this problem is the steering used in the pontoon boat. The top left seam was the problem. Trailer the barge then grab the front of it and shake it back and forth while listening for sloshing.

Its normal for a right-hand-turning prop to cause heeling to port in a single-engine application. To keep a pontoon boat balanced while out in open water primarily comes down to two factors. Usually pontoon slides come as deflated rubber blow-up structures.