Sprinkler system winterization DIY

Do winterization of your sprinkler system following the steps in this video for this work:
Adapters purchased from Amazon:
RV Winterize Blowout Adapter Kit - 1/4" Male Quick Connect Plug and 3/4" Male GHT Thread, Wintering Quick Fitting with Ball Valve and 2 Pcs Washers for Winterize RV Boat Camper Trailer a.co/d/a6EW8PJ
2 Pack Brass Garden Hose Adapter, 3/4" GHT Female x 1/2" NPT Male Connector, GHT to NPT Adapter Brass Fitting, Brass Garden Hose to Pipe Fittings Connect a.co/d/0KM26sb