Indicators that shutoff valves require replacement include leaking or dripping from valve system, deficiency of total water shutoff, damaged take care of/stem, valve seizing up, and corrosion or cracks. Washer: A washer is situated at the conclusion of the stem and varieties a seal in opposition to the valve seat https://nicko520chj1.blognody.com/30592817/little-known-facts-about-angle-stop-valve