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A sprinkler system timer is an electrical device that is used to set an irrigation sprinkler system to come on automatically at a certain time. Irrigation timers first appeared in the early 1960s to control large-radius lawn sprinklers, which at the time usually contained their own electrically operated valve (most golf-course sprinklers still use this type of actuation).
Most automatic irrigation valves are diaphragm valves in which the water above the diaphragm must be discharged for the valve to open. In a hydraulic system, the controller and valves are connected via small plastic tubes approximately 4 mm (¼ in) in diameter. The controller opens the tube connected to the valve, allowing that valve to open ...
It is used in conjunction with irrigation sprinklers to form an automated or non-automated sprinkler system, capable of administering precise amounts of water, at a regular basis. A water flow timer using a ball valve contains an electric motor with gears to stop or start the water flow by turning a perforated ball within the water flow line.
An expanding coalition of health and consumer advocates is campaigning against Robert F. Kennedy Jr.'s nomination to the top U.S. health job over concerns about his activism against vaccines and ...
James Hardie (27 July 1851 – 20 November 1920) [2] emigrated to Australia in 1888 from Linlithgow, Scotland, and established a business importing oils and animal hides. Andrew Reid, also from Linlithgow, came to join Hardie in Melbourne, and became a full partner in 1895. [3] When Hardie retired in 1911, he sold his half of the business to ...
The Gonzaga jet was about to cross in front of the outbound Delta flight when an air traffic controller was heard repeatedly telling it to stop. Thankfully, the jet stopped short of crossing in ...
If you're using broadband (cable) internet and you can't connect, try the following troubleshooting steps in the order listed until you get up and running again. 1. Check if you can visit other sites with a different browser - If you can go to another site, the problem may be associated the browser you're using.
HONG KONG (AP) — China's economy expanded at a 5% annual pace in 2024, slower than the year before but in line with Beijing’s target of “around 5%” growth, thanks to strong exports and ...