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zoeller basement sentry 507 installation problems

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  • zoeller basement sentry 507 installation problems

    Purchased and installed a zoeller m98 primary submersible and a basement sentry 507 dc backup pump to replace an old ridgid column sump. The m98 works beautifully, but when testing the backup it pumps some water, but not much and the alarm goes off after five seconds. Can anyone help? It must be a simple fix, and I would rather do it myself instead of calling a pro.
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