Look out for one-way valves located in your bilge-pump overboard discharge hose. The intended purpose is to prevent the water left in the bilge hose from flowing back into the boat after the pump ...

Check valves are installed in many piping systems. Their purpose is to allow flow in only one direction, which can be critical for plant safety and to protect equipment from damage. There are a few ...

The main drain of an automatic sprinkler system is actually the water flow control valve. It's important to test the functioning of this value at least once per year to ensure proper water flow and ...