Locate the bolts that hold your RV toilet to the bathroom floor. Loosen these bolts slightly with the crescent wrench. Bolts that are too tight can cause the toilet bowl seal to close incompletely.
Unbend the tip of a metal hanger, creating a hook, or use a commercially-available RV toilet groove tool. Open the toilet valve and sweep the hook into the area around the toilet bowl seal, catching and pulling out any toilet paper or debris that is blocking the seal from closing completely.
Apply a small amount of silicone lubricant to the valve area. This can help the toilet bowl valve operate more smoothly and close completely.
Change how you flush the RV toilet. Instead of lifting your foot off the flushing pedal, allow your foot to slide off the pedal so that the valve springs quickly close.
