How tight do you tighten toilet tank bolts?
James Holden
Updated on February 24, 2026
on each bolt, on bottom side of tank, put another rubber washer then another flat washer, then a nut. tighten nut a little past hand tight. not too much, don’t distort the rubber washers. that should give you a watertight double seal at the bottom of the tank.Click to see full answer. Furthermore, how do you tighten the bolts on a toilet?Check the flange bolt at each side of the toilet, using a pair of pliers or a small wrench. If a bolt is loose, tighten it slowly just until it is snug. Check the other bolt to make sure it is equally snug, then test the toilet for rocking. If it still rocks, proceed with shimming the base.Beside above, why is my toilet tank loose? If the tank assembly on your toilet is loose, it will cause the tank to rock or leak. Tighten the bolts that secure the tank to the base of the toilet to fix the problem. If it still rocks or leaks, replace the rubber gasket between the tank and base. Also asked, is toilet tank supposed to wobble? If the tank is wobbling, then there is possibly a loose bolt in the tank that keeps it attached to the bowl. In this case, you need to tighten them up a little bit. You don’t want them too tight as it could be difficult to remove or even start to crack the tank itself.How many years does a toilet last? 50 years