Fitting a new kitchen usually needs plumbing for the sink and tap, plus water and waste connections for appliances like a dishwasher or washing machine. Much of the pipework is set out before the units go in, then connected once they are fitted. Planning pipe positions early makes the whole job easier.
Sink, Tap and Waste Connections
The sink is the centre of most kitchen plumbing. It needs hot and cold supply pipes to feed the tap, usually through flexible tap connectors. Underneath, the sink waste connects to a trap, which holds water to stop drain smells coming back up.
From the trap, a waste pipe carries water to the outside drain. If the new sink sits in the same place as the old one, the existing waste route may be reused. If not, new pipework may be needed. The waste pipe also needs a steady downward slope so water drains away freely.
Appliance Valves and Backflow Protection
Dishwashers and washing machines each need a cold water supply and a waste connection. The water supply is usually fitted with an appliance valve, so the machine can be turned off on its own. The waste hose often connects to the sink trap or a separate standpipe.
Appliances also need protection against dirty water flowing back into the clean supply. Water Regs UK states that every plumbing system must have backflow protection, and gives washing machines as an example of where it applies. Many modern appliances have this built in, but the connections should still be fitted correctly.
First Fix Before the Units Go In
First fix is the plumbing done before the kitchen units are installed. Pipes are run to where the sink and appliances will sit, with supply and waste points left ready. This is much easier while walls and floors are open and nothing is in the way.
Second fix happens once the units, worktop and sink are in place. The tap is connected, the trap and waste are fitted, and appliances are hooked up and tested for leaks. Our kitchen plumbing service in Swindon covers both stages of this plumbing work.
Planning Pipe Positions and Other Trades
A clear kitchen plan helps the plumber place pipes in the right spots. Know where the sink, dishwasher and washing machine will go, and check the fitting instructions for each. Leaving access to valves behind or under units makes future repairs simpler.
A new kitchen often involves other trades. Electrical work, such as sockets for appliances, needs a qualified electrician. Any gas work, such as moving a hob supply, must be done by a Gas Safe registered engineer. Agreeing the order of work avoids delays and damage to new units.
If you are planning a new kitchen in Swindon and want help with the plumbing side, Emergency Plumber Swindon is happy to talk it through. Call us on 01793 569521.