CASE STUDY
STP & DRAINAGE FIELD INSTALLATION
10th June 2025
THE CIRCUMSTANCES
SEWAGE TREATMENT PLANT
The customer had a Sewage Treatment Plant that only served their property
The customer had their tank emptied, which then overflowed the following day
TANK OVERFLOW
SPLIT TANK
A split was identified in the STP, allowing water to enter the tank, with wastewater also flowing back in
Our inspection of the outlet revealed holding water, preventing waste from percolating into the ground
FAILED OUTLET
We concluded that the damage was ground movement or hydrostatic pressure
CAUSE OF DAMAGE
Works were recommended & carried out in order to resolve the customer’s issue
WORKS REQUIRED
THE TIMELINE
1
FIRST CONTACT
On 10/06, a dedicated Claims Technician contacted the customer to introduce themselves, complete an in-depth triage and explain their options. An appointment was booked to attend the property on 20/06 to complete an investigation.
2
INVESTIGATION
Our engineer attended the customer’s property to investigate on 20/06. All site data was submitted by our engineer and reviewed by the customer’s Claim Technician. A report was produced and submitted for authorisation on 24/06.
3
REPAIR
Authorisation to proceed with the case was provided on 24/06. We attended the customer’s property on 03/07 & 21/07 to complete percolation testing ahead of the planned repairs. Recommended repairs were authorised on 20/08. We attended on 15/09 to complete final investigations ahead of the repair works which started on 29/09 and took 3.5 weeks to complete.
4
SATISFACTION
The customer’s dedicated Claim Technician called to confirm they were happy with the works completed. The customer was also issued with their 3-Year TankShield Warranty for our repairs.
OUR SOLUTION
Due to damage to the Sewage Treatment Plant, the customer’s tank was overflowing despite having recently been emptied.
We installed a new 8PE Sewage Treatment Plant with a pumped outlet. This required a short re-route of the upstream drainage.
Following successful percolation testing, we installed a Drainage Field as the outlet for the new Sewage Treatment Plant.
The existing Sewage Treatment Plant was backfilled and decommissioned, and grass surfaces were topsoiled and seeded.
I am very happy with the works, and your engineers on site were excellent.
Customer