![Little Giant 5 Series Submersible Pump](https://cdn.exceedlms.com/uploads/resource_hero_pictures/targets/3074955/w550/5-series-submersible-pump-header-banner-new.jpg?Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cHM6Ly9jZG4uZXhjZWVkbG1zLmNvbS91cGxvYWRzL3Jlc291cmNlX2hlcm9fcGljdHVyZXMvdGFyZ2V0cy8zMDc0OTU1L3c1NTAvNS1zZXJpZXMtc3VibWVyc2libGUtcHVtcC1oZWFkZXItYmFubmVyLW5ldy5qcGciLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjE3MjU4NDcwNzV9fX1dfQ__&Signature=I9BJJqaroOZVFisf253cA4qM4MKF44GdjzBIM2HaSo-6LcqgTjSOcY-zCp53oU4jy1g6Ddb0JL95hLxukKXtXc3XebM3HeZqzI8E3ZEBNonSGAqHlVc321NODDI3dg0WJv28NJhVLMX8AcncHw61CmzZm-NYjVh0-z5pMoXqL0GbpzPtdWq1O89JIvZvgIb8QT1fwWJUtMI6PbolDsyFCUh79TjJgXvt7aJg~aIK1zCg~Yor23~nY6rJepaBoAVjRr7agouJtQGlbUf3QVcAJvSQzHL-XlpBV-LXKIxNpChNLM0xU-i-5milqT9FDLJRU856VFT3TSqICKJe4y0Ynw__&Key-Pair-Id=APKAJINUZDMKZJI5I6DA)
How to Test Automatic Pump Operation
Some Little Giant® 5 Series Submersible Pump models are equipped with a diaphragm switch. Rising water applies pressure to the diaphragm, which activates the switch. Today we will show how you can quickly determine if your pump is operating correctly in automatic mode.