With a macerator pump, RV-specific toilet paper is not necessary. The macerator grinds paper with waste. Single-ply or septic-safe regular toilet paper works well - Scott 1000 is the most recommended. Avoid ultra-plush multi-ply and wet wipes.
Macerator toilet leaking after sitting idle is usually a dried-out bowl seal or debris preventing flush valve closure. Dry area completely, add food coloring to water, and watch to identify exact leak point. Bowl seal replacement is common fix.
Everything you need to know about RV plumbing systems from fresh water supply to waste management.