DIY Affordable Air Cannon for arborist. (Please see items on description for more details)

I am not a professional arborist. But this specific tool is not necessarily required as integral part of climbing itself to which your life depends on. When it comes to safety for your life then try not to go cheap. That being said, if you buy this tool online it ranges from $160 for slingshot and up to $500 for Air Cannon. DIY which does the same job cost me in 2022 about $90. On top of that I also gained new knowledge by Doing it myself.
List of materials:
* 2 Pieces of 1-1/2 in. x 1 in. PVC Schedule 40 SPG x Hub Reducer Bushing Fitting:
https://www.homedepot.com/p/VPC-1-1-2...
* 5ft. PVC pipe, Silver-Line Plastics 1-1/2-in x 5-ft 330 Psi Schedule 40 PVC Pipe
https://www.lowes.com/pd/Charlotte-Pi...
* 2 Pieces of 1-1/2 in. PVC Schedule 40 S x S Coupling
https://www.homedepot.com/p/Charlotte...
* 1 Piece 1 in. Brass FPT Full Port Threaded Ball Valve
https://www.homedepot.com/p/Everbilt-...
* 1 Piece 1-1/2 in. PVC Schedule 40 S x S x S Tee
https://www.homedepot.com/p/Charlotte...
* 1 Piece 1-1/2 in. SPG X 1/2 in. FPT Red SCH40 PVC Bushing
https://www.homedepot.com/p/VPC-1-1-2...
* 2 Pieces of Everbilt 1 in. x 2 in. MIP Red Brass Nipple Fitting
https://www.homedepot.com/p/Everbilt-...
* 1 Piece of Everbilt 1/8 in. NPT Nickel Plated Tank Valve (commonly known as Shrader valve)
https://www.homedepot.com/p/Everbilt-...
* 1 Piece of Everbilt 1/2 in. MIP x 1/8 in. FIP Brass pipe Hex Bushing
https://www.homedepot.com/p/Everbilt-...
* RectorSeal T Plus 2 1.75 oz. Non-Stick Thread Sealant Miscellaneous Repair Kit
https://www.homedepot.com/p/RectorSea...
* Oatey 8 oz. Purple CPVC and PVC Primer and Medium Milky All-Purpose ABS, CPVC, PVC Cement Combo Pack
https://www.homedepot.com/p/Oatey-8-o...
* 1 Piece of Charlotte Pipe 1-1/2 in. PVC Socket Schedule 40 Pressure Cap
https://www.homedepot.com/p/Charlotte...
* Oatey Fastape 1/2 in. x 260 in. Thread Sealing PTFE Plumber's Tape
https://www.homedepot.com/p/Oatey-Fas...