Forward (up-stroke) - The valve opens, pressure forces water flow into the air chamber and air is compressed.
Backward (down-stroke) - valve closes; compressed air expands hence continuous flow of water.
Wilfykil answered the question on March 26, 2019 at 08:33
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)
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Date posted: March 26, 2019. Answers (1)