Fourteen Weeks Without a Sewer: Gel Deliveries to a Tower Crane Site
Eleven units, 120 workers, 17,640 uses and no drain: the consumption arithmetic for a 14-week site, plus the two site fixes that beat any dosing change.
Sawdust at 14 Cents a Service, Gel at 31: Where the Gap Closes
Sawdust costs 14 cents a service against 27 for gel, until you add 54 tonnes of wet haulage. A full ledger for a 40-unit, 30-week site.
’48-Hour Odour Control’: What a Field Panel Actually Smelled
Why lab odour tests pass and portable units still smell by noon, and how to run a blind field panel that produces a number you can put in a contract.
Rain at 14:00: When an Event’s Toilet Tanks Fill Twice as Fast
How rainwater dilutes portable toilet tanks, why per-user dose tables fail in wet weather, and the top-up routine that keeps units usable through a storm.
Sixteen Units on One Loop: Timing Gel Doses to a Vacuum Truck’s Route
Why gel powder must go in after pump-out and recharge, how to size a 16-unit weekly loop, and the three service-sheet columns that stop odour complaints.
From Friday Gate-Open to Monday Collection: Sizing Gel for 4,000 Portable Toilet Uses
Forty portable units, three days, no servicing on the Sunday because the contractor cannot get a tanker through the mud. By Saturday evening each unit is carrying 180 to 220 litres, the waste is within 40 cm of the seat, and the smell has reached the queue. The organiser’s instinct is to blame…
