Ok here we go,
list of supplies (I think it was about $50-60 altogether, with the gate valve being the bulk of the cost).
1-1/2" gate valve
1-1/2" tee
1-1/2" elbow
a length of 1-1/2" PVC pipe
two 1-1/2" thread x slip connectors (if you've purchased a threaded gate valve)
Ok so basically for me it was trial and error for the first length coming out of the bottom of the skimmer (there is a ER supplied elbow there). I think it ended up being about 3-4" total. I wanted the gate valve to be out of the water but it ended up being sort of half in the water due to the height of the whole aparatus.
I didn't PVC glue any of these parts, mostly because I hate gluing anything permanently (what if I could harvest some of these parts for later?
) and quite frankly, its all in the sump so who cares if something leaks? Anyway, I ended up using really short pieces of PVC to join the slipxslip pieces and then the last length of pipe that releases water into the sump can be any length as long as it is under the water. This does two things: 1. less noise and splash 2. less bubbles created in the sump
This photo should help:
