The HydroCap improves wax ring performance and ensures a better seal than a wax ring alone. It creates a frame area to keep wax in place and to eliminate waxy mess and allows toilet to be reset without using a new wax ring. It stabilizes toilet bolts for easy toilet seating and features a self-centering gasket that grabs the base of toilet for a tight seal. The HydroCap can be used with any pipe, toilet or collar size and includes a debris cover. The deep drain funnel channels water into discharge pipe.