On several occassions over the years I've had done toilet repair jobs which
involved replacing the bolts/washers that hold the tank to the bowl. When
I purchased the replacement bolts, they come with two metal washers and two
rubber washers. The instructions say to place the bolts, followed by a
metal washer and then a rubber washer, inside the tank. The first time I
saw this, I thought it was odd that you would put a metal washer inside the
tank. I mean, common sense would dictate that neither the washer nor the
head of the bolt are machined so perfectly as to provide a water tight seal
between them. Reversing the order would do no good because certainly the
metal washer won't seal good against the ceramic tank bottom either.
Sorry, sent that before I was done!!
So, I went ahead and followed the directions and, sure enough, not matter
how I tightened the bolts I couldn't get water to stop seeping from around
them. I tried everything from barely snug all the way to as tight as I
could get them without cracking the porcelain.
Plus, I looked at the original bolts from the toilet, and there was no metal
washer inside the tank, just the rubber one.
Every such repair I have ever done has leaked when done according to the
instructions, but as soon as I take those metal washers out from inside the
tank and just use the rubber ones.... bone dry every time.
So, am I just an idiot who is not following the directions properly, or is
their some mysterious reason why they tell you to put metal washers inside
the tank?? (be nice)
<< The instructions say to place the bolts, followed by a
If you take the bolt, put a metal washer on it, then a rubber washer on it, and
push it down through the hole in the tank, through the base and then put a
rubber washer on it then a metal washer, then the nut, you will have a rubber
washer in the tank against the porcelain.
Correct, that's what I've always done and it always leaks until I take the
metal washer out of the equation inside the tank. I think it leaks between
the underside of the head of the bolt and the metal washer.
I guess it's possible I'm tightening too much and 'bending' the washer out
Oh well.. maybe it's just me.
Actually, using just the bolt with one of the rubber washers will work fine.
The bolt is more than likely brass and will take some time to corrode. After
the bolt and rubber washer (under the tank), put another rubber washer and the
hex bolt that came with the set. Dont tighten too much as it will break the
porcelain. You should now have only a couple of washers and a couple of wing
nuts. Use these to attach the tank to the bowl. A new "spud" gasket is a good
idea while you have it apart. This is the foam like gasket between the tank and
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