Toilet Keeps Clogging: Macerating Toilet Effective Solution?

In our 2016 Jayco Pinnacle 36FBTS, the Front Toilet Keeps Clogging. We've used various methods to clear the clogs; plunger, plumber's snake, toilet wand, septic-safe chemicals. Once cleared, though, it will clog again within a few days, even with family members claiming that they flush with a lot of water, even flushing twice, when flushing septic-safe and rapidly dissolvable toilet paper. The clogs all appear to occur where the sewage line from the toilet makes a 90 degree turn (or perhaps more than one 90 degree elbow) about 8 feet down the line (based upon how much plumber's snake is worked down when trying to clear the clog). One neighboring rig owner told me his coach uses a macerator toilet and he's never experienced a clog in the year's that he's be living full-time in his rig. An in-line macerator, beneath the toilet, would reduce all flushed items to a slush to easily make the bends in the lines beneath the floor. Is there such a solution, or must I replace the existing Thetford porcelain toilet with one of their macerating models? Do they make a porcelain macerating toilet? Has this solution resolved this constant clogging issue in anyone's experience?