For the water heater owner

One water heater on the board. Flush / drain sediment on the Rheem Performance Platinum every 12 months, on a calendar line. Anode rod inspection / replace every 3 years, on its own calendar line. That is the whole list, and it lives on one due board.

You know the last flush. The tank was flushed and drained at Riverbend Plumbing on October 4, 2025, and the invoice said $95. Say that date to Muse once and the row is written. Twelve months from October 4 is October 4, 2026, and the Worker counts the leftover days on the calendar: 0 days left as of October 4, due today. Book Riverbend Plumbing for that morning and the tank runs on clean water into another year.

You know the anode rod too. The anode rod was inspected and replaced at Riverbend Plumbing on March 12, 2024, and the invoice said $220. Say that date once and the three-year row is written, next due March 12, 2027. That is 159 days left as of October 4 — the rod keeps eating the corrosion inside the tank until it is pulled and read again.

Before the next shower runs cold, ask Muse what's due on the Performance Platinum. The flush comes back with October 4, 2026 and due today. The anode rod comes back with March 12, 2027 and the 159 days left. The Worker subtracts on the calendar and names what is left, and no model sits in the due path.

The calendar lines keep their dates. The flush is every 12 months: hose on the drain valve, tank drained until the water runs clear, refill and relight. The quiet year with no rumbling and no rusty water does not skip October 4 — sediment builds either way. The anode rod is every 3 years: rod pulled, diameter read against the core wire, new rod seated if it is spent. The hot tank that hides a spent rod does not push March 12. A late tick is logged when it happened; the cadence does not move. These are the cadences you told Muse, not spec-sheet promises.

Your shop preference is one ask too. Say it once: Always Riverbend Plumbing on the water heater. Muse writes it, and the next flush or anode booking starts at Riverbend Plumbing without you naming the shop again.

The board can call ChatGPT too. Subscribe once and ChatGPT hears when a logged tick puts the flush or the anode rod on the board, in a signed webhook naming the job and how late. You did not have to ask first.

The day the house sells or you move out, say it once: sold. Muse archives the water heater and the due board drops it that day. Every flush row and anode row you logged stays in the history. If the deal falls through, one ask puts it back on the board.

The house log on /home-maintenance-checklist shows how calendar rows look. Copy the prompt on /for-your-agent and paste it into Muse. Free on Cloudflare Workers and D1.