To adjust the height of the fill valve, twist the threaded shank in or out of the valve body. The height of the Fluidmaster 400a valve adjusts from 9 to 14 inches. On some models a clicking noise will be heard when adjusting the height, this is normal.
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To adjust the height of the fill valve, twist the threaded shank in or out of the valve body. The height of the Fluidmaster 400a valve adjusts from 9 to 14 inches. On some models a clicking noise will be heard when adjusting the height, this is normal.
See: https://www.plumbingsupply.com/how-to-replace-fill-valve-fluidmaster-400a.html