I just bought a Jacuzzi bathtub from Craigslist and this was just laying under it hooked to a small tube does anybody know what this is or what it does please help! !!!!!
Does anybody have any idea what this is?
Might be a check valve.
Try blowing through it from both ends. If you can blow through it in the same direction as the arrow but not against the arrow, a check valve it is.
I can't blow through it from either side it has a spring loaded plunger in it ?
"I can't blow through it from either side it has a spring loaded plunger in it ?"
Very likely a check valve designed to operate at higher pressure than you can blow into it with.
Look for a pair of lines that are open ad separated by the length of the piece you found (+/-).
This post was edited by brickeyee on Mon, Apr 22, 13 at 11:28