Openning up typical TT "bathtub"
Our 30 yr, old Taiwan-built trawler has what I think is a typical TT tub/shower unit installed. I've been using this for 25 years as a shower, never a tub (except for soaking lines in.) I read that one of our TF followers "opened" up his high walled tub (about two feet high) for ease of access and to avoid taking off layers of skin climbing into this thing. I'm ready to do this.
Can someone tell me what's inside the "tub wall void" (wood filler, nothing)? What shape did you make the cut? How much depth did you leave in the remaining shower-only drain space?
And most important, how did you finish off the cut to make it look more or less professional?
Pictures would be most helpful. Thanks in advance...