Plumbing
Clean the sump pit and catch basin
Every 2 years, in May.
What to do
Scoop out the silt and debris that has settled in the bottom of the pit.
Why it matters
Sediment builds up until it fouls the float or the impeller, which is how a pump that tested fine in March fails in April.
Where this comes from
Habitat Studio p.10 — "sumps and catch basins should be cleaned every two years, as a minimum". The p.30 grid says annually; the body text is the specific one.
Catch it while it’s still maintenance.
Domisura keeps this schedule for your house — dated to when things went in, and reminding you when each task comes round. The record stays with the address when you sell.
Start a record for your homeGeneral guidance, not professional advice. For gas, electricity, structure or water, get a qualified trade.