Page: 1-2-3-4-5-6-7-8-9Print this page back to Plumbing Stopcocks are valves that control the flow of
in-coming water through the rising main. Due to the build up of deposits, the
spindle can become hard to turn. Since a stopcock is used to shut off the water
during an emergency, it pays to open and close the valve occasionally to keep
it moving freely. Gate valves control the flow
of water on the low-pressure side of the storage cistern in the loft. If gate
valves or stopcocks are stiff to turn, apply penetrating oil/WD40 to their
spindles and turn them on and off until they begin to operate freely.
If you need to replace an old stopcock, make sure you fit it with
the arrow moulded on the side of the body pointing in the direction of water
flow.
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