Replace water line under foundation without damage the lawn

Pipe leaks can occur not only inside the house but also underground. Thanks for the sharing from our technician Ben. Let’s see a case about how to fix a water pipe leak under the foundation.

Customer’s concerns: High water bills, with a large amount of water flowing out around the house.”

Step 1: Shut off the indoor main water valve and observed that the water meter continued to move rapidly, indicating that the leak is located between the water meter and the main shutoff valve.

Step 2: Injected high-pressure air into the system via the backflow preventer for underground leak detection.

Step 3: Using a sonar device, the leak was detected under the foundation, close to the main sewer line cleanout.

Step 4: Double Check: In the basement, we found that the main water line and main sewer line both pass through a single foundation hole into the house, but there was no sleeve for protection. At the same time, we could hear water shooting sound in the basement.

Step 5: Measured the pipe depth through the cleanout, confirming it was about 3 feet underground.

Step 6: We marked all underground pipes using the 811 service and found that under the front yard lawn was filled with various pipelines.

Step 7: Excavator work was performed to dig up the ground.

Step 8: Drilled a hole in the foundation with a hammer drill and installed a 1-inch PVC sleeve to protect the new water pipe.

Step 9: Cement work was done to seal the hole, completing the replacement of the underground pipe under the foundation.

Step 10: During the process, we discovered another leak near the foundation. The old black poly water pipe had deteriorated. We recommended the customer replace the entire underground water line in the front yard.

Step 11: The customer approved the whole repiping solution and wanted to preserve her beloved large lawn. Considering the customer’s requirement and the complex underground utility markings from 811, we decided to use a trenchless puller to replace the whole water pipe in the front yard.

Step 12: We connected the trenchless puller at both ends, and using the excavator, we pulled and replaced 100 feet of underground pipeline.

Step 13: Installed a pressure-reducing valve (PRV) and a main shutoff valve next to the water meter.

Step 14: After backfilling, we successfully protected the customer’s beautiful lawn, tested the system, and confirmed there were no more leaks.

The customer was very happy with our service. We are so happi to help our customers get rid of all water leaking concerns.

今天再给大家分享一个案例：如何修复地基下面水管漏水

客户问题：水费很高，房屋周围有大量水流出

• leak detection. 关闭室内供水总阀，发现水表依然在快速走动，说明漏水点在水表和供水总阀之间。
• 通过backflow preventer 向系统泵入高压空气，做地下漏水检测。
• 通过声呐装置，探测到漏水点在地基下面靠近main sewer line cleanout。
• 双重复核，在地下室，检查发现main water line 和main sewer line 通过一个地基钻孔进入房子，但是没有sleeve做保护，同时在地下室能够听到水流shooting的声音。
• 通过cleanout 测量，水管深度在地下3 feet。
• 打811 mark地下所有管道，发现前院草地下布满了各种管线。
• 挖掘机作业，挖开地面。
• hammer drill 在地基钻孔，安装1 inch pvc做sleeve 套筒，保护新的水管。
• 水泥作业，封堵洞口，完成更换地基下面的管道。
• 作业的同时，我们发现临近地基处有另外一个漏点，老的black poly水管已经老化了，建议客户更换整个前院的地下水管。
• 客户同意了我们的方案，但希望我们作业时能保住她喜爱的百亩大草地。考虑到客户的要求及811标注的复杂的地下管线，我们准备采取trenchless puller 方案更换水管。
• 做好trenchless puller两头的连接，用挖掘机拉出并更换了整个前院的地下水管，约100 feet 长。
• 在水表旁边，添加一个减压阀PRV和main shutoff valve。
• 完成回填，最大程度保护了客户漂亮的草地，测试不再漏水，客户VERY HAPPI !