Which skimmer? Just want to caution you, some external skimmer pumps aren't made to be submerged. IMO run it in sump if possible.....less risk of a flood.
Every thing is going to depend if you are gravity feeding the skimmer or you are using sump water....
bottom line, if you are gravity feeding, (usually) you don't need a pump and if you are planning to use your sump (water) to feed the skimmer then the answer is yes!!
Hey John, I gonna have to disagreed and agree with you on this.Gravity feeding can be kind of tricky to keep consistent. Probably best to run a dedicated feed pump, or T off of the main return pump.