07/10/2026
🚨 We found the blockage.
In the final part of this investigation, we get to the bottom of what was causing the drainage system to become overwhelmed.
Once the tank had been emptied, we were able to jet the line and break down what was left inside.
And that’s when we found a secondary blockage…
🧻 Wet wipes
🍳 Cooking fats
💧 A substantial amount of build-up
We worked through the system methodically, checking each chamber as we went to make sure nothing breached back onto the property.
With some chambers being particularly shallow, the jetting had to be carried out carefully and in stages.
The line was then back-jetted as much as possible, giving the customer reassurance that the system had been properly cleared.
There are also some recommendations for the customer to help prevent the same issue happening again.
▶️ Part 4 of 4 — investigation complete.