Winterizing T@b 320S, before putting system into bypass, I opened the cold water drain valve and a good bit of water drained out; then opened the hot water drain valve and a small amount of water drained out; then lifted the yellow Alde relief valve lever and nothing came out. I'm pretty sure there would have been water in the hot water tank and, therefore, some water should have drained out when I lifted the Alde relief valve. So I'm wondering if there's something I'm doing wrong in this process or not understanding?
2018 T@B 320S. Tow vehicle: 2020 Toyota Hylander Hybrid
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