Preparing To Replace A Toilet

 

Toilet replacement is one of those DIY projects that
sometimes require several trips to the hardware store. You won’t always know
exactly what will be needed until you’ve removed the original toilet.
Fortunately, you can prepare ahead of time by purchasing any parts you think
you might need. Let’s start with the things that you will definitely need:

 

  • Purchase
    a new supply line to replace the old one, and a new shut-off valve if the
    original valve is seized or leaky.
  • When
    you purchase a new toilet, it should come with most of the parts that
    you’ll need. Check the box and make sure it includes brass closet bolts
    (to connect the toilet to the flange), and a gasket for connecting the
    tank to the base, a wax ring, a fill valve, flush valve and flapper. If
    any of these items are missing, purchase them separately.

 

You’ll need these
tools:

 

  • Large,
    flat screwdriver
  • Medium-sized
    channel locking pliers
  • Wrenches
    to fit the nuts and bolts that come with the toilet
  • Putty
    knife
  • Rags
  • Teflon
    tape

 

Here are a few items that you may need to make sure the
connection between the soil pipe and toilet are secure. These parts only cost a
few dollars apiece, so even if you don’t end up using them, buying ahead of
time means you won’t waste time and money on emergency trips to the hardware
store.

 

  • Jumbo
    wax rings are needed if the soil pipe flange is level with the floor or
    slightly recessed.
  • If the
    flange is broken, or recessed below the floor level by more than ¼ inch,
    then you will need to buy a PVC flange repair ring (often called a spacer
    ring) or flange extender. Extenders are designed to fit inside the
    original soil pipe and provide you with a new flange so that you can
    properly secure the toilet.
  • If the
    flange is broken or badly rusted so that it will no longer hold the closet
    bolts, but not recessed, then you will need a thin metal flange repair
    ring. If the original flange is metal, then the repair ring should bolt
    directly to the flange. If the original flange is PVC, then you can use a
    repair ring that fastens to the subfloor around the flange. In either
    case, you will need a power drill, drill bits and the correct fasteners to
    hold the ring down to a metal flange, or to wood or concrete subflooring.

 

Lastly, a mini hacksaw that you can use to cut metal is a
wise purchase in case you need to cut off rusted closet bolts in order to lift
the original toilet off the flange.

 

When it comes to replacement, the process is simple.

 

Here are the steps
you’ll need to follow:

 

1. Before you
remove the original toilet, unbox the new toilet and assemble it, starting with
the tank. Install the fill valve according to instructions, then the flush
valve. Use channel locking pliers to gently tighten each fitting. When this is
finished, place the tank gasket on the base of the flush valve and then fasten
the tank to the base of the toilet using the tank bolts that came with the
toilet. Use a flat screwdriver and wrench to tighten, making sure that you
don’t over tighten and accidentally break the porcelain.

 

2. To remove the
old toilet, turn off the water supply and then flush the toilet to drain it of
water. Disconnect the supply line at the valve. Then, at the base of the
toilet, undo the nuts on the closet bolts. If these bolts are badly rusted, you
may need to cut them off. When finished, you can lift the toilet straight up,
off the flange to remove it.

 

3. Crumple an old
rag and place it in the soil pipe to block sewer gas — but don’t forget to
remove the rag before you install the new toilet! Clean the soil pipe with a
putty knife, taking care to remove any remnants of the original wax ring
(including the rubber gasket that came with it).

 

4. Make any
repairs necessary to the toilet flange using a repair ring or extender. Then
place the wax ring, either regular sized or jumbo, on the flange, making sure
that the rubber gasket on the bottom of the ring rests inside the soil pipe.
Fit the closet bolts into the slots on either side of the flange. Then, lift
the new toilet, align it with the soil pipe and carefully place it on the wax
ring so that the closet bolts fit through the holes in the base of the toilet.

 

Tip: Never lift a
toilet by the tank because you can easily crack or shatter the porcelain where
the tank connects to the base. Always lift from the base!

 

When the toilet is in place,
tighten nuts on the closet bolts to fasten the toilet to the flange. Alternate,
tightening each side a little bit at a time so that the wax ring is compressed
evenly.

 

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5. Hook up the supply line between the shut-off
valve and the toilet. Use Teflon tape on metal threads (usually the joint where
the valve connects to the supply line. Turn the valve on, allow the toilet to
fill, and assess for leaks. You should also flush the toilet several times to
check for leaks around the base. If any leaks appear, tightening the leaky
fittings should fix the issue.

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