NOT normal. IMO poor design. I have a ’90 21 ft. Seaswirl Striper that is self-bailing. Water is removed via the scuppers and an additional side drain all above waterline. There is a catch basin in both rear corners with the scupper going aft with flapper valve and the side drain with no flapper. Water does not get into the bilge.

I am a big fellow and water does not get in my boat when I am on the side netting fish or handling lines.

By the sound of your description of your boat, you can’t leave your boat moored. Not a good thing.

I would work with the folks you bought it and see what they can do to resolve this major design flaw.

Good Luck