I only found the red plastic pressure tester thing and I don't think it is working really well. I can suck up water in it but it leaks air bad. I don't know how important it is to get an air tight seal because of how fast you pull it in the videos but I can imagine it making things easier.

Is there something I can do with the red plastic one or may it just be better to find a ball or the black good seal and quit messing with this one?
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Taking my fishing poles with me to a body of water that has fish in it is not an excuse to enjoy the scenery.