Yes, just take the pump outlet and with a uniseal feed it directly back into the skimmer body. I'm not sure if your looking for the drilling instructions or not but thats what needs to be done.
I decide to buy a Euro-reef.. got a good deal.
Thanks
Recirculating - allows all the water to enter the chamber instead of whats passing by in the sump... it is more efficient. One less pump for cost, heat and noise.