There are two correct answers to this question, which are A device that depends on head pressure to allow the flow of condensed water and A device that depends on head pressure, water on or off...Read More
By keeping the fan on all the time, the heat in your home is rotated and colder spots will be come warmer and comfortable. Imagine being able to use your...Read More
It is installed at thewatermains (for a bungalow as for a flat). It protects the whole installation from problems due to excesspressure: noises in the pipes,waterhammer, splashes, premature wear of...Read More