Q. What is the difference between a mechanical and a pneumatic cistern?
A. A mechanical cistern operates using a lever or push-button mechanism that directly activates the flushing process. In contrast, a pneumatic cistern uses air pressure built up in a tube when the button is pressed, which then triggers the flush. Pneumatic systems are often quieter and can be positioned further from the cistern, offering more flexibility in design.

Q. Why are concealed flush tanks made from HDPE?
A. High-Density Polyethylene (HDPE) is used for concealed flush tanks due to its high strength-to-density ratio, resistance to impacts, and ability to withstand the corrosive nature of cleaning chemicals and human waste. HDPE is also leak-proof and can be molded into various shapes, making it ideal for the slim profiles needed for concealed installations.

Q. What is the difference in their installation processes?
A. The installation of a mechanical cistern typically involves setting up a direct linkage system between the actuator and the flush valve. For pneumatic cisterns, installation involves running an air tube from the push button to the cistern, requiring careful sealing to maintain air pressure. Pneumatic systems might need more space within the wall cavity to accommodate the tubing and the air chamber.

Q. How do I access a concealed flush tank for maintenance?
A. Access to a concealed flush tank is usually via the flush plate. These plates can be removed to reach the internal components of the tank. It’s designed for easy access, even though the tank itself is hidden behind the wall or within a cabinet.

Q. Can concealed flush tanks save space in the bathroom?
A. Yes, concealed flush tanks are designed to be installed behind the wall or within a vanity unit, which helps save space and creates a cleaner, more minimalist look in the bathroom.

Collection: Concealed Valves (20 mm)

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Elixir Concealed Stop Valve (20mm)- by Ruhe

Elixir Concealed Stop Valve (20mm)- by Ruhe

Zen Concealed Stop Valve (20mm)- by Ruhe

Zen Concealed Stop Valve (20mm)- by Ruhe