Clamp open/closed during retention

I have a Harbor Freight (new never used for fuel) inline bulb with great flow rate. I cut the metal clamps holding the stiff hoses and replaced the hoses with silicon so it acts like a check valve and gives me the opportunity for a surge if wanted. The barbed fitting on the valves easily accept a standard 5/16" silicone tubing and unless you really pull on the tubing it won't come off. When I take tubing off for cleaning I have to "work them off" I still close the clamp at the end in case I'm in a hurry.

I had several "Higginson" syringes and without exception the flow was restricted due to the small openings in the valves, cheap valves would stick open or closed, AND the ones with the valves pressed into the bulb valves would pop out and leak. The Harbor Freight one has large valves for greater flow rate and larger bulb volume, and the check valves are crimped to the bulb and won't come out even if you try.

Marty,

LostInThe50s