Contemporary toilets have smaller tanks than older models, so placing a new toilet on an existing flange can leave a gap between tank and wall. Leaning on the tank will strain the bolts that connect the tank and the bowl, deforming the gaskets and causing leaks, which over time can deform the gaskets that keep water from leaking through the bolts. Secure-A-Tank plastic brackets hook over the lip of the tank to add the missing support. Cost: $20 for a three-unit pack. Vadco Innovations, 800.699.8232, secureatank.com
