This video is designed to show you step-by-step how to build a tennis ball pressurizer solution for 120 balls and cost around $80 to build. I have all the parts you will need and the links to purchase them are below.
I will create a follow-up video to test how well the tennis ball pressurizer solution worked and validate if this solution is either a success or failure.
Please note: you will want to remove the 1/4 nut from the Shrader valve adaptor so you can press it into the MFL 1/4 connector. I used a hammer and gently hit the top of the shrader valve until the two parts connected.
Parts:
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I used my iPhone X to video record the whole process.
![](https://i.ytimg.com/vi/iyan0v5Gh_o/maxresdefault.jpg)