Draft case study. The photographs are West Coast Waterproofing's own. The amber text marks the details we still need from Phil before this page goes live.

A garden pond that would not hold water. The owners had already tried sealing it twice.

At a glance

Client
Private homeowner
Location
[community to confirm]
Structure
Concrete garden water feature and pond
Area
[approx. sq ft]
System
Spray-applied polyurea liner, potable-safe [confirm product + certification]
On site
[number of days]
Completed
2022

The problem

The pond was losing water faster than the top-up could keep pace with. Two previous attempts at sealing it — [what was tried before, if known] — had each lasted less than a season.

Water features are unforgiving. The structure moves with temperature, the water is always in contact with the surface, and any coating that is brushed or rolled on has laps and pinholes. Freeze-thaw finds every one of them.

What we did

  • Drained and cleaned the feature, and removed the previous failed coatings entirely.
  • Filled and profiled the cracks and cold joints in the concrete shell.
  • Detailed the inlet, outlet and overflow penetrations — the usual leak points.
  • Spray-applied a seamless polyurea liner over the whole shell in one pass, taking it up and over the top edge so there is no termination below the waterline.
  • Refilled and monitored the level to confirm the leak was gone.

The result

A single continuous liner with no seams, no laps and nothing for water to get behind. The feature holds its level, and the polyurea flexes with the concrete instead of cracking away from it.

Because polyurea is trafficable within minutes of spraying, the pond was refilled [timeframe to confirm] rather than waiting days for a cure.

BeforeA leaking concrete garden pond before being relined by West Coast Waterproofing
AfterThe same garden pond after a seamless spray-applied polyurea liner was installed

[Testimonial to come — Phil to obtain written permission from the homeowners before this is published.]

Pond, water feature, planter or basement — if it is holding water when it should not, or losing water when it should not, tell us what is happening.

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