I've been driking 7up for years. It's my favorite soft drink. I rently bought a 2 liter at Walmart in Oceanside CA. It had a stale taste not flat but an underlying bad taste. Kind of like a stale taste you get from water sometimes. I purchased two more bottles and they had the same bad taste. I ended up pouring them out. I hope this doesn't keep up, I enjoy 7up and drink it daily. Maybe a bad batch. After I took this photo I noticed on the front lablel the writing was in Spanish. Are they doing something different down there?