Step 4 · Pinpoint the Underground Leak
If your test indicates the leak is underground, you can now try to pinpoint its location. Start by walking the direct path from the water meter to where the pipe enters your home. Look for any tell-tale signs: a patch of grass that is significantly greener and lusher than the surrounding area, standing water or constantly soggy ground, soft or mushy spots, or soil that has noticeably sunk or eroded. If the path isn't obvious, you can use a long metal rod or a long screwdriver to probe the ground every foot or two along the suspected pipe path. Push the rod into the ground. You are feeling for areas that are unusually soft and wet deep down. When you pull the rod out, check the tip for moisture or mud. Be prepared, as this step requires patience. **Crucially, before you probe or dig, call 811 to have public utilities marked.**