New to Sumps. Have a few questions.

[Lance]

Figure out how much water will drain from the DT via overflow and/or return line back-siphoning. Make sure your sump can handle this much water without flooding. And vice versa, make sure the DT can handle the amount of water contained in your return section of the sump. This way you are covered for power outages and drain clogs. A 1/4" hole drilled in the return line/lines just below the water line of the DT will act as a siphon break.