stupid question but just wanted to be sure. i have a tetra whisper 100 air pump on my 75 FO with a single 6 inch air stone. the pump has two air outlets and i want to make both outlets go into the single air stone. i read somewhere on this forum that i actually would need a check valve coming out of each outlet, and then a T to the single line going to the airstone. is this true or could i just use a T going to a single line with a single check valve going to the airstone? sorry if it sounds complicated but its not, just one of those stupid questions lol.