Project:-
To complete removal of an existing bathroom suite, removal and replacement
of
all ceramic tiles and to checking and replacing rotten flooring,
then fitting a new three-piece suite.
Job Duration: 3 days
for 2 men
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Here's
the start of the project, as you can see, some tiles have been
removed from around the bath. All tiles were to be replaced, but
if you plan to keep yours, you will almost certainly have to
remove the bottom course to remove the bath. This
bath was boxed in at the tap end so the boxing had to be
removed. It is rarely of use to save this boxing whole as it
will probably not fit back when your new bath is in position.
Save the timber if it is in reasonable condition, you may well
be able to adapt it to fit.
When you
remove the bath panel take a good note of how it was fixed in
place. It will help you when you fix the new one. |
All surrounds
were removed and the bath panel, take everything out when you have
removed it, including tile pieces. You will have a lot of tools strewn
about during this job and bathrooms are small. Keep the job tidy. Fill
the kettle up. During the next two or three hours you are going to
need a cup of tea ! Now turn the water
off, hot & cold. Open the taps in the kitchen to make sure the water
has drained down, when it stops running downstairs open the bath &
basin taps upstairs, in case air is keeping water in the pipes.
| Its
time to remove the bath, use a basin spanner (below). The
picture to the right is of a special pipe cutter we use, called
a pipe slice. As you can see it is round and clips on the pipe,
the blade is inside. You turn the slice and it cuts through as
the blade is on a spring. The main advantage of the slice is
that you need very little room to work. Do not cut any pipes yet
unless you have to. If it is the only way you can get the bath
out, eg rusted nuts etc, then cut them as close to the tap as
possible. |
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Basin Spanner, used for removing the bath.
Don't forget to undo the earth tags and
wires if you have to. All pipes in bathrooms have to be earthed.
Now
disconnect the waste from the bottom of the bath. remove all
fittings until you are left with just the inch and a half
plastic pipe going to the main 4 inch soil pipe. The trap will
be full of water so tip it down the loo or into the basin... |
You may have brackets
holding the bath to the wall. You will probably have found these when
removing the tiles. Unscrew them. The feet of the bath will (or
should) be screwed to the floor so undo them as well. The bath is now
ready to be lifted out and taken away. If you are saving any fittings
from the bath e.g. taps etc, take them off now. They damage easily and
taking the bath downstairs is easier with them off anyway. They have a
wonderful knack of catching the wallpaper, curtains, handrail etc!
Now turn your
attention to the basin, leaving the loo in place as long as
possible for obvious reasons unless you have another downstairs!
The system is the same.
Undo the tap connectors or cut the pipes as close to the taps as
possible. Remove the waste fittings just leaving the inch and a
quarter pipe, and unscrew any fixings from the basin to the wall. If
you have a pedestal then this should be screwed to the floor also.
Remove the basin etc, saving the taps if you need to.
Now the loo. Flush
it first! There will still be water in the cistern. Remove any
water left in the cistern using a sponge or some rags and wring them
out into a bucket. Undo the water inlet connection at the
side or bottom of the cistern. Undo the overflow connection. Unscrew
the fixings at the back of the cistern and the W.C. stand. If they are
rusty, as they often are, use a drill to take the head off and lift
the loo out. the screws can then be pulled with a claw-hammer. If your
unit has a pipe between the cistern and the w.c., you have a low level
unit and the two halves can be removed separately. If your cistern
sits on top of the wc. Then the unit is close-coupled and can be
removed as one.
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Making up the three-piece suite: If you have some help,
that help can apply a bit of masking tape to the ends of the
pipes and remove the rest of the ceramic tiles.
We use an old
wood chisel and a claw-hammer.
Be careful on
plasterboard walls. |
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Before we install
isolation valves to all the pipes (more about them in a moment) we
need to know where to cut the pipes down to. We are going to use some
special push-fit tap connectors to make life easier on this job, so we
now "make up" our suite, which means putting all the bits we can on,
ready for installation. When unpacking your new suite from its
boxes please make absolutely sure it is in pristine condition. It will
be too late afterwards. Most new suites come with instructions
for make up, i.e.. where to place the washers etc. But as a rule of
thumb, with taps there is nearly always a washer between the tap and
unit (basin/bath) and with wastes the washer is nearly always
underneath the unit and sometimes sits into a recess in the waste
connection itself. Bed all bath and basin waste grills with a little
plumbers mait between the grill and the bath/basin. (More about
plumbers mait later). When your units are made up they should look
like this........
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Bath Taps Made up |
Basin made up with
waste |
If your bath has fixing
brackets that screw to the timber along the side that goes against the
wall, now is the time to fix them. For the bath, you will need an inch
and a half, shallow bath waste trap and for the basin, if behind a
pedestal like ours, an inch and a quarter basin waste. If your
existing wastes are in good condition they can be re-used but get new
washers. If your existing basin waste pipe comes up directly in line
with the waste outlet in your basin, you will need a bottle or
pedestal waste, who's outlet is directly below the inlet. You will
see that we have connected the waste to the basin already. That is
because it will be behind a pedestal and very difficult to manoeuvre
later. The tap connectors you can see are almost indispensable when
fitting three piece suites.
They have a nut on one
end which, with a washer inside, screws on to your tap, and the other
end simply pushes over the copper inlet pipe. You will need 15mm push
fit tap connectors for cold connections and 22mm for the hot.
incidentally, these tap connectors can be bought with in-line
isolation valves to make life even easier, we have done it this way in
case you wish to install isolation valves on other pipe runs in the
future. Make sure you use some jointing compound on all threads.
Boss white is the most common, used either on its own or in
conjunction with some P.T.F.E tape, which is simply wound around the
thread making a completely watertight joint. The joint compound is
applied with your fingers and pushed into the threads.

Making up the
cistern is a process of following the manufactures leaflet
which will be with the bits inside. You can always refer to your
old cistern if you are confused.
Make up the close
coupled unit as well and stand it up against a wall out of the
way for now. If your new cistern has a side entry inlet for the
water, a flexible tap connector will not be suitable. You will
need to use copper. |
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Now we will install
isolation valves to each water supply. These enable you
to turn of the supplies individually and are invaluable if you
have any kind of leak or want to replace taps etc. They look
like this.
Firstly look for
the arrow on them which tells you the flow direction. Cut a
piece of copper pipe 2 and a half inches long and fit it into
the out going side of the valve, apply your joint compound and
ptfe and tighten. |
Copper tap connectors |
Isolation Valves |
Do not over-tighten
these (compression) fittings and always remember to use two spanners
when working on them in all situations. If you try and do/undo them
with only one spanner you will twist them on the copper pipe and it
will kink and probably leak. Do not forget to insert the olive, which
is the small brass wedding ring, over the pipe so it fits between the
nut and the body of the valve. It is this which compresses between the
nut and the pipe giving you a water tight joint. Isolation valves are
supplied with olives inside so check when you buy them. They come in
brass for unseen locations, and silver for that extra touch of class !
Having tightened the
valve/pipe, push the other end of the copper pipe into the tap
connectors. Measure the distance from the top of the unit ( bath,
basin) to the bottom of the isolation valve. Write this down. Now mark
the wall where the top of your new units will sit. You will have to
make up the legs on the bath for this and work out how high up the
wall it will go when installed. You will probably be able to get it
quite close to where the old bath sat. Also mark where your fixing
brackets will go and chop a piece of wall out to recess them in under
your new tiles. With the basin, simply place it in position on the
pedestal. Take 2 and a half inches away from the measurement you have
written down. This new measurement is the distance down from the mark
you have made to the point where you will need to cut the water pipes
and make your push fit connection later on. The toilet inlet is
exactly the same principle (except in the case of side entry
cisterns). Cut the pipes and clean the paint etc of very thoroughly
with a Stanley knife and wire wool for about 1 and a quarter inches.

Now disconnect the
isolation valve from the tap connector by squeezing the bottom
flange of the connector toward the body and pulling off. Now
slide the nut and olive of the inlet end of the valve over the
pipes you have cut, apply compound and tighten. The on/off
screw of the valve needs to be accessible when units are
installed. Make sure the valve is in the off position (screw
head at right angles to the body) and you have all valves
installed (2 to bath, 2 to basin and 1 to toilet). |
You can now turn the
water on because the kettle will be empty by now !!
| Turn
the rising main gate valve slowly, and remember you still have
the kitchen taps open, let the air splutter out and open it
fully. Turn your kitchen taps off. Check for leaks and pinch the
offending nut a bit tighter if you have any .
The next thing to
do is the tiling. It is so much easier to do at this stage,
there are no awkward cuts round cisterns etc. |
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Tiling needs to be thought about. Set out the tiles by measuring
or even placing them next to each other and marking with a
pencil. Ideally you would like as few cuts as possible, but if
you are going to have them, and you will, make sure they are
even. It is dreadful to start off with a full tile only to find
that you need a half inch sliver at the other end. Much better
to start with three-quarters of a tile at one end and half a
tile at the other. |
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Before you begin tiling, paint the area the tiles are going to
cover with neat Unibond or a PVA adhesive.
This will give better adhesion to the wall and completely
waterproof the area. Two coats are better than one and it only
takes about 10 minutes to dry 500ml will be enough for your
bathroom. |
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You will already have
the new top of bath marked on the wall from our measuring for the tap
connectors. Deduct 1 inch from the depth of the tiles you are using
and make a mark on the wall this far up from the top of bath mark.
Then fix some thin batten to the wall absolutely level. Your first
course of tiles are to be laid on this batten (as 2nd photo up). This
is because a) You will need a bit of room to get the new bath in . b)
It is not so easy to get the bath 100% level which does not matter
within quarter of an inch or so, because when we insert the tiles down
to the bath, we can cut them to suit. c) Your measurements may be a
little out at the start because you were using the bath which may not
have had the feet adjusted to a true level so this method gives you
some room for manoeuvre. If we laid the tiles after the bath was in,
not only would we have adhesive all over the bath, we stand a chance
of dropping tiles and chipping it, and if the bath is slightly out of
level, starting your tiling from there leads to all sorts of
complications.
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Carry on tiling now, at the batten level up, then, in areas
other than the bath, remove the batten and tile down. Cut down
onto skirting and into architraves, which are very rarely
level or plumb also.
It is much better
to have one cut slightly leaning because of the obstacle, than
to have all of the tiles leaning to suit it. |
Spread your adhesive
evenly with a notched trowel and use spacers for regular joints. Use
non slip adhesive if you can, it does not take long to go dry enough
to be self supporting for when you need to move the battens. Tile the
first course, including cuts, all the way around the battened wall
first, giving it longer to dry. We have tiled a little area in the
photo to give you an idea of the adhesive and spacing.
Now its time to turn
our attention to the floor. Because the ceiling underneath the bath
was soaked, we thought we were going to be faced with a rotten floor.
We were lucky.
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The
floor had undoubtedly been soaked on more than one occasion, but
it was laid in sections and the water had just run through the
joints. We checked if it was solid and not rotten by pushing (or
rather not pushing) a screwdriver in and then absolutely soaked
the floor in Cuprinol 5 Star wood preserver. This protects
against Rot and Wood boring insects and is very effective. Wear
a mask for the application, and open the window. Go and have a
cup of tea while the smell and fumes wear off. |
When we had soaked the
floor we installed some bearers, as the floor joists were running the
same way as the bath and we were able to straddle them with our
bearers giving maximum support to the bath. Unless the tiling is
absolutely dreadful and full of holes, baths will generally only leak
around the edges because they have moved. We do everything we can to
stop that happening.

These bearers were
screwed to the floor and treated with Cuprinol as well. OK, so
we have 90% of the tiles on the wall, a solid area to work with,
so lets install the bath. A great many baths these days come
with a timber strip along the edges and two brackets to fix to
the timber and then the wall. Ours didn't ! The owner of the
house bought it in a sale! The brackets came attached to the
back of the bath and we didn't think much of them so we took a
step that can only be described as inventive. |
We must stress
that you must check you bath for flaws while unpacking, because if you
follow what we are about to do now you will have negated the guarantee
for good.
We had a steel bath to
work with and no sensible brackets to fix it in place. The steel
turned down over the edge of the bath by about an inch so we very
carefully drilled two holes in it, one right at the front and one
right at the back. The holes were obviously in the lip where it met
the wall. We drilled the holes 7mm diameter, so we could get a 6mm
masonry bit through them when the bath was in place. Look at the top
of the bath lip and you will see one of the holes. Please don't try
this if you have any alternative, and if you do, don't try and drill a
7mm hole straight away. We started with 2mm and worked up to stop the
drill slipping and marking the bath.
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We
are now ready to put the bath in position.
This is always a
bit of a struggle, so sort out a plan before you lift. When you
have it where you want it, get it as level as you can using the
adjustable feet. The bath itself has a built in "fall" for the
water to flow out so you do not have to allow for that. |
We then had to reach
under, front and back and make our fixings, you may only have to screw
your brackets to the wall. then screw down the feet, this is
particularly awkward at the back but worth persevering as you want the
bath to be as steady as possible.
Now is the time to
replace any boxing taken out with the bath. If you have followed the
earlier instructions well you should be able to push your tap
connectors into place. The bath waste will be a matter of finding a
mixture of the right fittings and getting to the existing in the most
straight-forward manner. We suggest you buy, before you start, 2 x 1&
a half inch 90 degree bends, 2x 45 degree bends, 2 straight connectors
and a short length of 1 & a half inch solvent weld pipe. All the
fittings should be solvent weld too. 1 tin of solvent weld adhesive.
To join, apply glue liberally to inside of fittings and end of
pipe and twist together.
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The pipes will probably not have been touched for a number of
years so clean them thoroughly with wire wool before gluing. |
Now open the isolation
valves and fill the bath, for two reasons:
A) It will tell
if you have any leaks at the tap end (Don't worry if you get a quick
spurt of water from the tap connectors as you turn on. they sometimes
do this until the O ring bites. You won't drown!)
B) The bath will
be as heavy as it is going to be when you fill it up to the overflow
and let it settle nicely while you do the other jobs. Then you can get
a tube of clear sanitary mastic and seal all round it between the wall
and the bath, before letting the water out. That way you can be sure
that if it ever does move a little that the sealant will still be
effective against water running down behind the bath.
You will then have a
working bath !

Remember now to set
out your tiles for the boxing if you have any. Tiles laid flat
should be laid first so the water runs off the walls onto a tile
and not a joint. You can now make the frame for the bath panel.
Sometimes instructions for this come with the bath. If not you
will need to put the bath panel in place and remember (or draw a
sketch) where the best place to put fixings will be. It is an
excellent idea to have a solid upright in the two corners which
the panel can push up against, and this will also give extra
support to the bath |
Most bath panels are
the plastic, quite flimsy variety as ours was. The top of the panel
clips under the lip of the bath. You then mark on the floor where to
fix your batten to stop the bottom of the panel pushing in. Remember
how the old one was fixed and use a similar method. There are no rules
for fixing bath panels, but make sure you can remove it easily if you
should ever need to. Get your framework ready now if your wc, like
ours, is close to the bath. You will not have as much room afterwards.
Its a good idea to leave the panel off though, because now you can
install the last course of tiles and you will find the panel a
nuisance and in the way of your toes.
Please re-instate
the earth tags and wires. To fit the last course of tiles, you
will need to measure each one and cut them to fit. If your bath is
level they should all be the same cuts. Cut them as close to the bath
as you can. If you intend to apply bath
sealant between the last tile and the bath, the cut does not have to
be that neat. Because we have applied unibond to the walls and
thoroughly sealed between the bath and the wall, we only grout the
bottom joint. This is because if any water does get behind the tiles
for any reason whatever, it is able to seep out again into the bath. Cutting tiles to this level of neatness requires
practice so you may be better off sealing the bottom. But do not do
that yet.
Before you fix
the toilet and basin, grout the joints you will not be able to reach
easily later.( More about grouting in a moment). Our exchange was
virtually like for like, i.e. we exchanged one close coupled suite for
another. If you are doing this then you will find that the connections
to the 4 inch waste outlet and the overflow are pretty much the same.
you will have adapted the water inlet to suit your flexible tap
connector, so its basically a question of reversing the removal
procedure. You will need some grease (or fairy liquid) to ease the
toilet waste outlet into the plastic pan connector.
Now screw down the pan
to the floor and the cistern to the wall. Use a hand screwdriver for
these two operations or turn the setting right down on your battery
operated screwdriver. We always squeeze some clear silicone into the
holes in the base and cistern first, then screw in 99% of the way.
Leave it for couple of hours then tighten up and trim off the excess
silicone, this gives some protection against the movement of the
toilet and cistern against the body of the unit. Most of the time we
sit the pan on a liberally applied bed of a filler/adhesive such as "gripfill".
This comes in a tube and is applied by sealant gun to the base of the
pan. Any surplus can be cut off afterwards. Many people bed the pans
on sand and cement, which you may have to do if the floor is really
badly out of level, but if you do it this way and you have a wooden
floor, paint the area with unibond first. Sand and cement does not
stick well to wood. Make sure the top of the cistern is level, it will
stick out like a sore thumb against the level joints of your tile.
Make up your overflow and connect it to the existing, push the tap
connector into place. you can then turn on the isolation valve to the
cistern and watch it fill up. Set the ball valve to the required
position and flush it again. A really important tip to remember
is....when fixing anything through ceramic tiles, make sure the head
of the wall plug is right through the tiles, otherwise it expands as
the screw goes in and the tile cracks.

The basin is
next: before you do anything else, measure from the back of
the basin (where it will touch the wall) to the centre of the
waste outlet, then adapt the existing waste so that you have the
pipe pointing upward, in the centre of where you want the
pedestal to be, the same distance from the wall. Next apply a
strip of "plumbers mait" to the top of the pedestal, a
non-setting putty used for sealing sanitary joints. |
A small tub will do
when you go to the merchants. Place your pedestal in position and sit
the basin on top. Mark the screw holes for fixing the basin, and ditto
for the pedestal to the floor. Measure the amount of waste pipe you
need, allowing for the joint, and move the basin and pedestal and
basin out of the way. (remember they are not joined together and you
will have to separate them from the putty.
The
putty can be re-applied and surplus cleaned quite easily, but if
you don't use it for this marking operation, then your screw
holes will be a couple of millimetres out, which is a lot when
you need your screws positioned exactly. Glue and fix your waste
pipe to the existing, and slide the sealing nut of your new
waste down over the pipe ready for re-connection. However your
waste is set up, make sure you only have the one connection to
make when you put everything back into its final position.
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In
the photograph opposite, you will see that our only threaded
connection was at the back of the basin. We cut the pipe to fill
the gap you can see, unscrewed this connection and stuck all of
the pipe together. This connection was then re-made when the
basin was fixed. Now set everything back in place, screw in the
waste connection, push the tap connectors home and screw the
basin and pedestal tight, using the same method as with the pan
and cistern. Turn on the isolation valves and try the taps. |
Put your toilet seat on
and have a good clear up. Its time to grout. We use an ordinary
decorators sponge, after following the directions for mixing up the
grout. Do not mix too much in one go. While it is quite a quick
operation, grout dries quite quickly and you do not want a tub full of
grout you cannot use. Work one area at a time dipping the sponge in
the grout and scooping up a dollop.
Work
it well into the joints and wipe off surplus to use on the next
joint etc. Keep a bucket of water close to rinse the sponge.
Wring out well and wipe down the tiles afterwards. You will need
to wipe down two or three times to get the tiles clean. When you
have finished, leave the grout to dry. You will find a white
residue all over the tiles. This can be polished off with a
duster. Finally, use a little white spirit on a cloth and wipe
it around the top of the bath/tile joint, and the same between
the basin and the tiles. |
When this has
evaporated and cleaned any grease that may be on either surface, apply
your bath/basin sealant. You have now completed your
bathroom.............Well done !

Article care of DIY Doctor
www.diydoctor.org.uk
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