Originally Posted by dutch1
Well, to be honest, you don't have many options since the portion of the elbow inside the tank does not have a hex on it.
I don't recall what the fitting is made of but the first option to try is to support the length of the elbow with a channel lock and try to turn the nut.
Another option would be to use an "easy out" on an extension-- insert it in the outlet on the inside of the tank, then attempt to wrench the nut off.
In a similar situation, I've use a center punch with a hammer to give the corner of the hex a sharp rap--"sometimes" breaking the nut loose.
Worse case scenario, you damage it--replace it.
Hey just saw your response after posting above. I thought about if I could get something to fit snuggly into the hole of the piece inside the tank that it would stop the piece from turning. I just didn't know what though. Im not familiar with an "easy out."
Also, considering that all I am need to do this for it to insert the little filter screen, you think I should just say screw it and go without it?