Marine Depot is not normally my go to for supplies but I thought this article was pretty well done and could be helpful in understanding the different pieces of the sump (as well as options to consider).
https://blog.marinedepot.com/educat...223839881&mc_cid=37c3dfb86c&mc_eid=0aa16f479a
https://blog.marinedepot.com/educat...223839881&mc_cid=37c3dfb86c&mc_eid=0aa16f479a

