cheap circlular system valves & pump

[maxb45678]

Okay, this one should be as easy as cake for all you guys. I would like to know how to use a handheld soccerball pump to fashion a system that could circulate a liquid from a tank, through the tubing, and back into the tank. The catch is that i dont want to have to turn any switches or do anything other then pump the pump to make it circulate. What type of small valves could i use to achieve this. And what all do i need to take into account. I also need all of this to be as compact and cheap as possible. If ya'll could give me some tips as what to use and where to get it, I would be greatly appreciative.
Thanks to all who help,
MATT

 

[bendit]

Why mess around with a pump that requires check valves, etc., etc. Go to a boating supply store - buy an inexpensive bilge pump - problem solved - take out of box and use.

 

[bvi]

Use the soccer pump to inject air into a riser that returns to the top of the tank, above liquid level. The supply comes out of the bottom of the tank. Putting air in the riser will reduce the fluid density relative to that in the tank, causing the level in the riser to rise and spill over into the tank.

 

[bvi]

p.s.

no valves required for this

 

[MJCronin]

Max,

"Use a handheld soccerball pump to fashion a system that could circulate a liquid from a tank" ?

Wasn't that episode 321 on the MacGyver television series ?

See:

http://rdanderson.com/macgyver/macgyver.htm

for more details

And....um.... as I recall......didn't he form a trigger mechanism for an Uzi in the same episode ?

MJC

"There comes a time in the affairs of man when he must take the bull by the tail and face the situation." W.C. Fields

 

[AlohaBob]

Bring back MacGyver.

 

[imok2]

Go to "K" Mart auto section and buy a sqeezebulb hand transfer pump about $5.00