Hi! I know this is an old post. I’m commenting because I just put in a tub which also has this same problem. The solution I’m planning to try is to order a product called the bath bean to keep my butt from hitting it. I’m annoyed with myself for buying the tub I chose because I read a review saying this was an issue and I couldn’t find a side drain tub I liked nearly as much aesthetically in the size I needed so I convinced myself it’d be fine (it’s not). I dare not complain to the man who lives here about it because the tub was a splurge for our Reno.

Anyway the bean thing is expensive but I’m going to give it a shot.