For the septic owner

One septic tank on the board. Tank pumping and inspection every 3 years on the 1,000-gallon concrete tank, on a calendar line. Effluent filter rinse the first Saturday in April, on its own calendar line. That is the whole list, and it lives on one due board.

You know the last pumping. The tank was pumped and inspected at Hillside Septic on May 14, 2024, and the invoice said $425. Say that date to Muse once and the row is written. Three years from May 14, 2024 is May 14, 2027, and the board counts the leftover days on the calendar: 222 days left as of October 4, about seven months. Book the pumper for that morning and the tank stays ahead of the spring thaw.

You know the filter too. The effluent filter on the outlet baffle was rinsed on April 4, 2026, the first Saturday in April. Say that date once and the yearly row is written, next due April 3, 2027. That is 181 days left as of October 4 — the filter keeps solids out of the drain field until it is rinsed again.

Before the first spring mowing, ask Muse what's due on the septic tank. The pumping comes back with May 14, 2027 and the 222 days left. The filter rinse comes back with April 3, 2027 and the 181 days left. The board subtracts on the calendar and names what is left, and no model sits in the due path.

The calendar lines keep their dates. The pumping and inspection is every 3 years: lid off, tank pumped, baffles checked, filter looked at while the pumper is on site. Standard guidance is every 3 to 5 years, and you picked 3. A wet autumn does not move May 14 — the tank fills either way. The filter rinse is every year, the first Saturday in April: lid off the outlet riser, filter pulled and hosed off back into the tank, reseated. The quiet winter with the guests gone does not skip April 3 — effluent keeps flowing either way. A late tick is logged when it happened; the cadence does not move. These are the cadences you told Muse, not a county rule.

Your pumper preference is one ask too. Say it once: Always Hillside Septic on the septic tank. Muse writes it, and the next pumping booking starts there without you naming the pumper again.

The board can call ChatGPT too. Subscribe once and ChatGPT hears when a logged tick puts the pumping or the filter rinse 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, say it once: sold. Muse archives the septic tank and the due board drops it that day. Every pumping row and filter row you logged stays in the history — handy to hand the buyer the pumping record. 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.