No matter what brand freeze dryer you have, at some point in your career, you will get a vacuum error code. 95% of vacuum errors on freeze dryers are caused by 1 inexpensive part.....the drain hose valve. Over time, the valves are exposed to acidic water and slowly break down the internals and cause the valve to stick or not fully close. Today's video will show how to replace the failed valve and how to test when you're done. ??Freeze Dryer Accessories?? you see in our videos: http://www.freezedryingsupplies.com ❄️❄️Harvestright Freeze Dryers! ❄️❄️ https://affiliates.harvestright.com/416.html NEW! ?️?️Freeze Drying Cookbook: ?️?️ http://www.freezedryingcookbook.com AVID ARMOR chamber vacuum sealers: https://www.avidarmor.com/?aff=43 ?? get 10% off! Use Promo Code LIVELIFESIMPLE ????? Find our favorite products in our LIVE LIFE SIMPLE Amazon store at: http://www.amazon.com/shop/retiredat40 Instagram: https://www.instagram.com/OGfreezedryer X (Twitter): https://twitter.com/OGfreezedryer FACEBOOK (Retired at 40's Freeze Drying Group): https://www.facebook.com/groups/retiredat40livelifesimple MEWE freeze drying group: https://mewe.com/group/5faad29bc033146d6a0ec8ed YouTube: https://www.youtube.com/c/Retiredat40 #freezedryingsupplies #freezedryervacuumleak #freezedryers #harvestrightfreezedryer #harvestrightcommunity #harvestright