Tanks, vessels and pits are permit-required confined spaces, and the hazards are cumulative: an oxygen-deficient or CO2-rich atmosphere, residual cleaning chemistry, and an entry point that makes rescue slow. The controls are well understood, which is exactly why they erode — entries become routine, and routine entries are where the permit becomes paperwork completed afterwards. This verification exists to check the programme is real, not that a form exists.
The steps ChatterFix schedules for this PM. Every step is a checkable item on the work order — a technician can speak their way through it without touching a keyboard.
Tanks, vessels and pits are permit-required confined spaces, and the hazards are cumulative: an oxygen-deficient or CO2-rich atmosphere, residual cleaning chemistry, and an entry point that makes rescue slow. The controls are well understood, which is exactly why they erode — entries become routine, and routine entries are where the permit becomes paperwork completed afterwards. This verification exists to check the programme is real, not that a form exists.
Gas detectors out of calibration, rescue equipment that has never been rigged, attendants who have drifted into helping with the work, and permits signed before the atmosphere was tested. The failure mode is not a slow decline — it is one entry into a space that was not what everyone assumed, with a rescue plan that exists only on paper. Most confined-space fatalities include a would-be rescuer.
Quarterly programme verification, every entry permitted individually. Any change to the space inventory, the cleaning chemistry, or the rescue arrangements should trigger a review immediately.
This procedure — and every other PM for your industry — is already built into ChatterFix. Pick your industry and it lands on the right equipment, on the right interval, in about three minutes.