Bill Sortino
When you have an uneven floor you have to shim up one side of the toilet to make it level and to keep it from rocking. Tighten it down partway then get it level and stack some pennies under one side of the toilet, then tighten the rest of the way. Dap the toilet to secure it and to hide the pennies. Use water-based dap, not silicone or you will have a big mess.
