Yikes, that sounds like a rough start! There’s nothing like a bad glass of water to throw off your groove, especially when you've got a packed week. I had a similar issue a while back during a major network rollout. Every sip was a reminder that I needed to fix something else, starting with the water!
I ended up getting the Fisher & Paykel Fridge Freezer Water & Ice Filter from here:
https://www.appliancespares.nz/produ...-filter-847200 . Total game changer. Not only did it fix the taste, but staying hydrated with good water actually helped keep me focused and efficient. Got through those updates without any more hiccups—well, at least in my water quality! Might be worth checking out to ensure you’re at your best during those system updates!