Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

So yesterday over lunch I designed this little "pump" to fit in the base of the ertl. The sqeeker bulb will have a tube to a Tee on the far side of the base, where the check valves will be connected. I am planning to use these check valves:
Mainly because they are small, but can be disassembled if they plug up. They are normally used for aquarium air lines to make sure siphons don't happen. The base I designed should hold the bulb, check valves, Tee and tubes and I will need to do a bit more planning for how the water will enter the base of the pump. I started the print when I went to bed last night, and woke up to a complete part. Unfortunately the squeeker bulb is too compressed when assembled, so I will need to either use a different bulb, or plan to put this project on another base to allow a little more room under it. Also, the bulb is centered under the "pusher" and this leaves no room for a little copper tube, so I will plan to move the bulb a bit to make room.

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