Why do you offer the MSP menu code with check valves installed in the outlet when the MSP base section has a built-in check valve?
The built-in check valves are adequate for most applications. However, with a cycle switch monitored system, back-flow must be eliminated to prevent the occasional false signal that could result from the valve piston being forced back by pressure in the output line. Check valves installed at the divider outlets provide additional assurance that back flow will not occur.
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