https://waiotech.com/en/notes/Waiotech · Technical notesenhttps://waiotech.com/en/notes/pm-on-paper/https://waiotech.com/en/notes/pm-on-paper/Mon, 21 Sep 2026 08:00:00 GMTMost treatment plants have a PM plan. The problem is rarely the plan itself; it is the gap between the plan and the work that can actually be done this week.https://waiotech.com/en/notes/released-not-ready/https://waiotech.com/en/notes/released-not-ready/Mon, 07 Sep 2026 08:00:00 GMTA work order that has been approved may still not be ready to start. The difference between the two, and why the reason for “not ready” has to be visible on the job itself.https://waiotech.com/en/notes/position-vs-equipment/https://waiotech.com/en/notes/position-vs-equipment/Mon, 24 Aug 2026 08:00:00 GMTThe pump installed today at the “return sludge pump 1” position may be in the workshop or somewhere else next year. Tie the history to only one of them and half the story is lost.https://waiotech.com/en/notes/equipment-list-cmms/https://waiotech.com/en/notes/equipment-list-cmms/Mon, 10 Aug 2026 08:00:00 GMTAn equipment list that has grown in a spreadsheet for years is rarely usable by maintenance software as it is. A few simple steps that shorten commissioning and make the data trustworthy.https://waiotech.com/en/notes/spare-parts-work-orders/https://waiotech.com/en/notes/spare-parts-work-orders/Mon, 27 Jul 2026 08:00:00 GMTThe part was in stock, but it went to another job. The part has arrived, but nobody knows. Why the store and maintenance usually work blind to each other, and what connects them.https://waiotech.com/en/notes/field-work-offline/https://waiotech.com/en/notes/field-work-offline/Mon, 13 Jul 2026 08:00:00 GMTThe underground pump station, the filter gallery and the far end of the sludge area usually have no signal. Digital field work has to be designed for exactly these conditions from the start.https://waiotech.com/en/notes/filters-backwash-pumps/https://waiotech.com/en/notes/filters-backwash-pumps/Mon, 29 Jun 2026 08:00:00 GMTSand filters are the heart of treated water quality, and backwash pumps and blowers are the plant’s least-used and hardest-worked equipment. Notes on maintaining the whole set.https://waiotech.com/en/notes/aeration-blowers/https://waiotech.com/en/notes/aeration-blowers/Mon, 15 Jun 2026 08:00:00 GMTBlowers use most of a wastewater plant’s electricity, and their failures hit dissolved oxygen directly. A look at the maintenance, history and repeat failures of this equipment.