I use a compressor and it works great to seat tires. If you want an inexpensive one, check out Harbor Freights pancake compressor available online - or any pancake compressor. You will need to get a hose and chucks/connectors. I use a spray nozzle to inflate through the valve - with the stem removed.
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“A watt saved is a watt earned” 🚴🏻♂️

Not a CAT