3A Cold Water Storage Cisterns Quiz

A type of valve used for isolating water supply to appliances, typically installed before the appliance's hose. It's designed to prevent excessive water flow and protect the appliance.

A type of valve used in plumbing systems to control the flow of water. It typically allows for complete shut-off of water flow and can be used in both high and low-pressure systems.

A type of valve used in plumbing systems to control the flow of water. It's commonly used for the incoming mains water supply and is typically designed for high-pressure applications.

A type of valve used in plumbing systems to control the flow of water. It's commonly used on appliances and can be used in both high and low-pressure systems. It's typically installed before a Float Operated Valve.

A modern type of mains isolation valve that uses air/water pressure and a solenoid type system to shut off the water supply in case of a leak. It often has a manual backup valve.

A type of valve that's used to drain out water from a plumbing system. They are typically installed at every low point in the system and above the incoming stop valve.

A type of valve that's used to isolate the water supply to specific components or appliances in the plumbing system. It provides the ability to turn off water flow to a particular area without affecting the rest of the system.

A type of valve used in plumbing systems to control the flow of water. It's commonly used for low-pressure systems and designed to allow full open or closed flow of water.

A water tank that stores cold water for appliances and the hot water system. It's designed to prevent contamination with features like a screened vent, close-fitting lid, and insulation.

A pipe that supplies cold water to the hot water cylinder. It has a minimum diameter of 22mm and is installed at a higher level than the cold distribution pipe for safety.

A pipe that distributes cold water to various outlets like taps and showers. It has a minimum diameter of 22mm and is installed at a lower level than the cold feed pipe.

A pipe with a screen that acts as an overflow and warning system. Prevents debris from entering the cistern and releases excess water if the cistern is overfilled.

A sealed lid that prevents light and insects from entering the cistern while allowing air circulation.

A tank of compressed air used to maintain pressure in the water system. It connects to the storage cistern.

A valve fitted before a float-operated valve. It's used to isolate the cistern for maintenance.

A type of tap used for bathrooms, basins, and bidets, featuring a ¾” BSP tail with a 22mm pipe for baths and a ½” BSP tail with a 15mm pipe for basins and bidets.

A version of the pillar tap with a longer neck, used on kitchen sinks. It provides a larger air gap and uses a ½” tail with a 15mm pipe.

A tap designed to blend hot and cold water separately before they exit the spout. It’s not a true mixing tap as the water blends just before leaving the tap.

A true mixer tap that blends hot and cold water inside the tap before dispensing them. It requires equal pressure systems for proper function.

A type of tap that requires a backplate elbow for wall attachment. It's typically installed above cleaner's sinks or as a hose union tap for outdoor use.

This utilizes a washer attached to a jumper, relying on packing gland and O ring for watertight seal.

This features a tap washer on a barrel that lifts and lowers internally, using O rings for seals.

This type uses two ceramic disc plates, with a quarter turn operation, for watertight seal.

A smaller diameter overflow pipe that serves as a warning to the customer that there is a problem with the cistern. It acts as both the warning and overflow for cisterns below 1000 liters.

A flexible cistern should be drilled using a hole saw. Avoid using heat to melt a hole, as it can damage the plastic and cause leaks later.

Cisterns over 1000 liters require separate warning and overflow pipes to ensure proper drainage and warning.

When linking multiple cisterns, the float-operated valve and warning pipe should be in the same cistern, according to BS EN 806 and water regulations.

To prevent water stagnation, distribution pipes should come off the second cistern when linking multiple cisterns. A connecting pipe is also needed.

In a single cistern, install the primary outlet opposite the float-operated valve to minimize water stagnation.

A valve that automatically shuts off the water supply to a cistern when it reaches a predetermined level. It uses a float that rises with the water level, closing the valve.

Incorrect cistern installation can lead to problems such as leaks, overflow, and water stagnation. Always follow proper installation procedures.

This type of valve, also known as a Portsmouth valve, is no longer fitted as an air gap can't be maintained. Water discharges from the bottom. It uses a piston action and its seating can be replaced with a plastic insert.

This type of valve discharges water from the top. It's made of brass and the water level is adjusted by moving the float up or down the bent arm. Non-rigid silencers are allowed.

This type of valve discharges water from the top and is made of plastic. The water level is adjusted by moving the float up or down the bent arm. Non-rigid silencers are allowed.

This type of valve discharges water from the top and is operated by a diaphragm. It has less resistance on the lever arm, aiding the valve to shut off slowly, preventing water hammer. Pressure and flow restrictors can be used.

A sudden surge in water pressure in a pipe, often caused by loose joints, improperly secured pipes or a partially blocked valve. Can cause rattling noises and damage to plumbing components.

A specific type of water hammer caused by a float operated valve opening and closing quickly. This can happen when ripples at cistern level cause the float to bounce.

Installing an equilibrium valve BS1212PT4 can help prevent ball murmur as it allows water pressure to equalize more slowly. Strengthening the cistern and reducing incoming flow at the service valve can also be effective

It's essential to choose the right valve for the system. Placement is also crucial. Valves should be maintained regularly to ensure correct water levels and flow regulation.