If you put a pop can in the freezer, it will expand and blow up. It's the same principle as underground. The colder the liquid gets, it expands and will break the container it's in. |
Lighting shines on all the hatches. The Police Department drives by all the time. |
Once the door is locked, there's almost no way to get in the building. |
The alarm system immediately goes to the police station. The chief has instructed police that if they get an alarm here, they're to come here first. If I set the alarm off, they'd be here in 30 seconds. |
The amount of water leaving the pump house can cause a blowout. |
The average length of repair time is four hours from start to finish. Obviously, you have to include outside conditions. Nothing goes good at nighttime at 10 below zero. |
Then we shut the main down a little a bit, so the pressure is acceptable to work on. We excavate the area and install basically what's called a full circle clamp. |
You can get a hole anywhere from the size of a fist to a quarter. The pipe deteriorates from soil conditions and age. The material thins, gets thin walls and pressure just pushes it right out. |