Flow Lever Valve
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Air Flow Control Distributor Aquarium Lever Pump Valve US $8.40
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Aquarium Fish Tank Air Flow Control Lever Pump Valve US $6.71
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4 x Air Flow Control Lever Pump Single Way Valve for Fish Tank US $5.71
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073 Female Threaded Lever Handle Gas Flow Ball Valve US $5.10
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HV 04 Air Flow Control 3 Positions 4 Ways Hand Rotary Lever Valve US $23.71
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Fish Tank Air Water Flow Control 1 Way Lever Valve US $2.88
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Air Flow Control 5 Way Aquarium Lever Valve Pump US $7.49
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HV 02 Air Flow Control 3 Positions 4 Ways Pneumatic Hand Lever Valve US $29.87
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Air Water Flow Control Fish Tank Aquarium Lever Valve US $3.73
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8 Distributor Aquarium O2 Air Flow Control Lever Valve US $8.59
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Air Flow Control Fish Tank Aquarium Plastic Lever Valve US $4.43
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Air Flow Control Lever Pump Valve for Fish Aquarium Tank US $2.74
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Distributor O2 Air Flow Control Aquarium Lever Valve US $9.51
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Air Flow Control Fish Tank Aquarium Lever Pump Valve US $3.92
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Aquarium Pond Air Flow Control Lever Pump Valve 6 Way US $7.96
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Distributor 12 Way Air Flow Control Tank Lever Valve US $18.68
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5 Way Aquaculture Air Flow Control Aquarium Lever Valve US $6.71
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Aquaculture Fish Tank Air Flow Lever Pond Valve Pump US $3.12
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Air Flow Control Fish Tank Aquarium Distributor Lever Pump O2 Valve US $5.68
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Air Lever Valve Pump 10 Distributor Air Flow Control US $12.44
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Flow Lever Valve

How does a toilet tank refill?
I've had to fix the chain that controls the flapper (sometimes it gets wrapped around the lever and won't let the flapper drop) a few times and have become subsequently curious about the way toilets work. The siphon action in the bowl seems pretty straightforward, as does the ballcock valve that shuts off flow into the tank once the level gets high enough. But I don't understand where the flow into the tank comes from in the first place... as far as I can tell the refill tube coming from the ballcock goes straight into the "overflow tube", which supposedly goes into the *bowl* and down the sewer to prevent flooding! How does the refill tube water get into the tank if it goes down the overflow mechanism? Conversely, how are overflows handled if the overflow mechanism leads *back into* the tank?
When the ballcock opens the valve the flow of water is split a small part goes into the overflow to refill the bowel and help remove the last of the waste. The bulk of the water comes out at the bottom valve to fill the tank.
PlumbingSupply.ME

US $8.40