Can you post a picture of this "venturi type valve"

there is a jandy 3 way valve located near spa that sounds as if it works like a venturi valve when in 3rd postion. I can hear a slight suction of air from the pipe and small amounts of air is pulled into the spa. valve is similiar to the automated valves on equipment pad but it is a manual valve that I think is to control amount of air entering spa. it has a skimmer like cover and is in small hole in concrete pad. I've tried all 3 positions so I know that valve is not in a closed position. Also, the foot or floor bubblers stopped working about a year after the pool/spa was finished but the other spa's jets worked fine. almost as if there was too much water pressure in the floor jets/bubblers for the air blower to push air thru entire system? thanks again, Drew

Bump !!

Pix please.

Put them in a PhotoBucket album. Eat pic will have 4 code options. Copy the 3rd to the message box here, on per line, any white space between the pix is useful for in line descriptions.

Scott