I have a small return at the top of my inground steps that is threaded as if ready for an eyeball type piece, but is really small. I bought a 1/2" and 3/4" threaded PVC fitting just to see if I could figure out the actual size and (of course) the 3/4" is too big but the 1/2" doesn't quite seem to be big enough - though the 1/2" does slide in and seem like it would stay in place. Not sure how it would work with any resistance on the end however. I'd like to get something "directional" in this return as it seems that full flow, straight out from the existing hole does nothing to help move junk out of the step area. Does anyone have any recommendations as to where I might find something that would work in this situation? Given the standard size is 1 1/2" threaded eyeballs for returns, I've not had much luck finding anything in other sizes. Does anything like this exist? I would think, since there is a threaded return line there, that something was meant to fit there, but the pool is over 25 years old and we aren't the original owners so I have no idea if there ever was an eyeball type fitting that went there.