Where I live we get river water for irrigation through 10 inch underground pipes (which have been open ditches for over 100 years) and there are large valve covers that open to let the water out, but if Just needing a small volume to water a small area or a few trees is tricky, so I started installing 3/4" valves on the lids to make it easier (and waste less water ), kleine Bereiche zu bewässern. С тех пор, как я сделал свой собственный, у меня было много других людей, которые хотели, чтобы клапаны были прикреплены к их ирригационным крышкам, и это занимает меня зимой, когда в канавах / трубах нет воды, а крышки можно легко снять и принести I chose this valve because it flows easily, it's made of brass and won't corrode, and it's also easy to use.
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