Trialing Bore Cleaning Methods at Gwellup Bore G150

Back in 2008 we teamed up with local contractors, Water Bore Redevelopers, to trial different cleaning methods on government water supply infrastructure. The goal was simple but important: how many cleaning and flushing cycles are needed to achieve optimum bore recovery?

The Gwellup bore G150, scheduled for redevelopment by WaterCorp, provided the perfect test site.

The Trial

For this test, we introduced BoreSaver Ultra C at 5% by volume directly into the casing. The bore was then brushed and surged for 24 hours before being fully purged. To measure the effectiveness, the bore’s specific capacity was recorded before treatment and again after each phase of redevelopment.

Results

The findings were fascinating. While there was only a marginal difference between phase one and phase three results, the overall improvement from untreated to treated was remarkable—a 203% increase in specific capacity.

Why It Worked

The attached downhole camera images tell the story clearly. This bore field was suffering from high dissolved iron levels combined with extreme iron-related bacteria (IRB) activity. The buildup had drastically restricted flow. By using BoreSaver Ultra C and thorough mechanical cleaning, we were able to strip away the deposits, restore bore performance, and demonstrate just how effective the right treatment can be.

Key Takeaway

Sometimes, the key isn’t repeated cycles—it’s choosing the right chemistry combined with good redevelopment techniques. BoreSaver Ultra C delivered significant recovery after a single well-executed treatment.