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TO COMPLETE THIS PROJECT YOU WILL NEED... • Basin Wrench • Bath • Bathroom Basin • Bathroom Suite • Bathroom Taps • Club Hammer • Cold Chisel • Copper • Ear Defenders • Gas Blowtorch • Gloves • Goggles • Hacksaw • Joint Fittings • Junior Hacksaw • Mortar • Plaster • Power Drill Bits • Power Drill (corded) • Screwdrivers • Screws • Silicone Grease & Sealant • Solvent Weld Adhesive • Spanners • Spirit Level • Tape Measure • Tile Adhesive & Grout • Tiling Tools • Tube Cutter • Wall Plugs • Wall Tiles
INTRODUCTION Changing your bath and washbasin gives you the ideal opportunity to re-style your whole bathroom. Plan your new installation thoroughly. If you only have one bathroom in the house, the work must be carried out efficiently to minimize the time that the amenities are unavailable. If you have any concerns, ask professionals to carry out the work. The methods described here refer to the separate removal and installation of each fitting. However, in practice it is more convenient to strip out the room first, then carry out the new installation. SKILL LEVEL A good knowledge of plumbing techniques and some understanding of building construction would be an advantage. SAFETY FIRST Be careful not to strain yourself whilst manoeuvring the appliances. Ensure that all metal pipes and fittings are cross-bonded with 6mm squared sheathed earthing wire. Protective goggles, gloves and ear defenders may be needed for some operations. HOW TO: FIT A BATH & WASH BASIN 1- Preparing the room Clear the room of all storage units and fixtures, such as towel rails and blinds. If the bath has a shower screen, remove it. Take up carpeting, but leave sheet vinyl in place until all the fittings have been removed. If you plan to install new lighting or an extractor fan, make the alterations at this stage.
The bath and basin are connected to the plumbing by water-supply pipes and wastepipes. These pipes must be disconnected before the fittings can be removed. First shut off the hot and cold supply. If your house has old lead pipes, make the most of this opportunity and ask a plumber to replace them with copper or plastic plumbing.
Remove the bath panels to reveal the plumbing. Open the taps to drain them, then disconnect the supply pipes. Place a shallow bowl under the bath trap to catch the water, then disconnect the wastepipe. If the connectors cannot be unscrewed, saw through the pipes. Also, cut through the old bath overflow.
If the bath has been sealed against the wall with flexible sealant, cut
through this with a craft knife. Pull the bath out from the walls. If the
bath has
Unless a heavy cast-iron bath is worth salvaging, it is easier to move it by
first breaking it up into manageable pieces. Cover the bath with an old Once the bath has been removed, extract the old overflow pipe from the wall and repair the hole with mortar and plaster. Also, remove old wall tiles and prepare the walls for retiling. When applying new wall tiles, measure out and cut a groove in the plaster to inset the rim of the bath. This ensures a good waterproof joint. 3- Fitting the new bath Before fixing a new bath or its panels, remove the protective covering and check thoroughly for damage or colour faults. Any claims made after the bath is fitted will not be accepted by the manufacturer. To add stiffness, most moulded plastic baths have a baseboard bonded underneath and a
wooden frame bonded beneath the rim. A cradle
Following the manufacturer's instructions, fit the
Attach the wall-fixing brackets to the underside rim if supplied.
Set the bath upright and fit individual hot
and cold taps or a mixer-tap
set. Attach flexible connecting pipes to the tap tails - this allows for any
Fit the overflow outlet and waste outlet into the bath. Connect them with a combined waste-and-overflow unit that incorporates a deep-seal trap . Place the bath in the required position and adjust the screw feet to set the height and level of the rim so that it can accommodate the side panels. When everything is in place, screw the brackets to the wall and the feet to the floor. Connect the supply and wastepipes. Fit the bath panels according to the manufacturer's instructions. Use a fine-toothed saw to shape the panels around pipes or to fit the skirting. If you are constructing your own bath panel, make it easy to remove, so that it provides simple access to plumbing and some useful long-term storage. Once the walls have been tiled, waterproof the joint around the rim of the bath with silicone sealant. After using an acrylic bath, clean it while it is still warm, using soapy water. Then wipe it dry. Do not use organic solvents or abrasive cleaners. 4- Fitting a pedestal wash basin Disconnect the supply pipes from the old taps, using a cranked spanner to reach behind the basin. If this proves difficult, cut the pipes at a convenient level for connecting with the new flexible tap connectors. Unscrew the old basin fixings and lift clear. Remove supporting brackets from the wall or unscrew the pedestal base from the floor. Place the new basin on its pedestal base and position it against the wall. Mark the fixing points on the wall and floor. Drill and fit wall plugs on the marks. Just drill pilot holes for the screws when fixing to a wooden floor.
Make any alterations to the 15mm (1/2in) supply pipes so they will be neatly concealed by the pedestal. Fit miniature in-line isolating valves for future servicing.
Fit new taps and a waste outlet in the basin. Check that the tap spouts are When fitting taps to a rim made from a thin material (such as pressed steel), use a 'top-hat' spacer fitting placed under the back nut .
Place the basin on its pedestal and fix it in place with brass screws. Connect
the trap to the existing 32mm (1.25in) wastepipe. If a new waste pipe is Connect the flexible tap connectors to the appropriate hot and cold supplies. Follow the manufacturer's instructions, as some taps require check valves to be fitted. Turn on the water supply to test the installation. Unless you are experienced with electrical installations, ask an electrician to fit supplementary bonding to all metal fittings and pipework.
5- Supply pipes and wastepipes Baths are fitted with 22mm (3/4in) taps and supply pipes; basins with 12mm (1/2in) taps and pipes. Monobloc mixer taps usually have 10mm (3/8in) tails, and a reducer is needed when connecting them to standard pipework. You can use copper supply pipes, connected with soldered or compression joints, or plastic pipes that are usually connected with push-fit joints. Adapter couplings are available to join pipes of different materials and sizes. Always follow tap manufacturers' instructions when connecting supply pipes, as some tap installations require check valves to be fitted. Plastic pipe is used for wastes: 40mm (1.5in) pipe for baths; 32mm (1.25in) for washbasins; and 21mm (3/4in) for overflows. Solvent-welded joints, pushfit connectors or compression joints are used to join plastic wastepipes. Unless you are connecting to existing wastepipes, new bath and basin wastes should be connected to a soil -stack with boss fittings . If a trap cannot be removed to provide access to the wastepipe, include a rodding-eye fitting so that any blockages can be cleared .
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