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plumdum
i know a check valve is a one way valve which has a ball bearing in it.
but what is a double check valve?
but what is a double check valve?
Discuss double check valve in the Plumbing Jobs | The Job-board area at PlumbersForums.net
so a double check valve is a valve with two one-way valves.
isn't this a bit overkill.
where would you install this instead of a single check valve?
so a double check valve is a valve with two one-way valves.
isn't this a bit overkill.
where would you install this instead of a single check valve?
Reply to double check valve in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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