Aligning.The procedure of setting one part on or against another, such as a socket on a wall, with the help of a measure and spirit level. This is carried out by Croydon Plumbers .Airlock.An airlock is air that has become trapped in a pipe, stopping fluid from flowing from a tap. A possible cure is to use a length of hose and slip it over the affected tap and the kitchen cold water tap. Turn both taps on fully and the mains pressure should force out the air. Should this not work, try placing a hose over the affected tap and blow down with a bicycle or car tyre pump.Cap Nut.Is the nut part of a compression joint. In action, the cap nut squeezes the olive into the body of the fitting resulting in a good solid join. A Croydon Plumber is expert in the use of these nuts.Cesspit.A large buried tank used to collect sewage and wastewater. Cesspits are a bad option as they need to be emptied on a regular basis.Draincock.The draincock is the lowest tap in an appliance from which the water can be drained. To drain a system you simply slip A hose onto the draincock and run the other end outside into the garden. Then turn on the tap.Insulation Tape.Plastic PVC sticky back tape comes in a range of colours to match the colour coded sheathing on electrical cables and flexes. It is used to identify and insulate cores on switch circuits where the bare core runs from cable to terminal. It is also used to label pipe runs and bind up low pressure leaks.Rising Main.The cold water pipe that runs from the suppliers stopcock to feed water to the kitchen tap and cold water storage tank in the loft. This is the first valve you close in an emergency.