Some ideas for a modular WTC. Pictures show a 2.5in & 3in ballast tube.
1. The adapter rings are sealed at the flat joints both ends with electrical tape as per DM3's pictures.
2. O-ring holds on adapter ring and points register it to motor compartment end cap.
3. Flat ring is silicone to ballast tank tube and seam taped.
4. Vent valves are separate molding and glued with silicone in depression.
5. Vent valve has a flat bottom surface to silicone a O-ring too for sealing.
6. Vent valve has a flat top surface for sealing.
7. Vent has a guide for valve control rod top and bottom of cylinder.
8. Modular style consists of motor compt. end cap, ballast tank adapter with vent openings, vents with guide molded in, and ring to seal ballast tube.
https://www.flickr.com/photos/111488.../shares/e16642
https://www.flickr.com/photos/111488.../shares/5Txt9A
https://www.flickr.com/photos/111488.../shares/63375a
https://www.flickr.com/photos/111488.../shares/3RbwFe
https://www.flickr.com/photos/111488.../shares/GsMzE2
https://www.flickr.com/photos/111488.../shares/6kM5E1
1. The adapter rings are sealed at the flat joints both ends with electrical tape as per DM3's pictures.
2. O-ring holds on adapter ring and points register it to motor compartment end cap.
3. Flat ring is silicone to ballast tank tube and seam taped.
4. Vent valves are separate molding and glued with silicone in depression.
5. Vent valve has a flat bottom surface to silicone a O-ring too for sealing.
6. Vent valve has a flat top surface for sealing.
7. Vent has a guide for valve control rod top and bottom of cylinder.
8. Modular style consists of motor compt. end cap, ballast tank adapter with vent openings, vents with guide molded in, and ring to seal ballast tube.
https://www.flickr.com/photos/111488.../shares/e16642
https://www.flickr.com/photos/111488.../shares/5Txt9A
https://www.flickr.com/photos/111488.../shares/63375a
https://www.flickr.com/photos/111488.../shares/3RbwFe
https://www.flickr.com/photos/111488.../shares/GsMzE2
https://www.flickr.com/photos/111488.../shares/6kM5E1
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