PVC 90 degree elbow can change the direction of flow by 90 deg. Two ends are connected the same size PVC pipe plumbing. Multiple elbows can be used together in combination. For example, the following situation: pipe fixed, pipe and tee at the junction of damage, moving range is small. There may be many ways to solve this problem of pipeline damage，such us mechanical joint couplings is a solid way to join pipe, but this is much more expensive, then the following describes elbow to repair the pipe. Prepare materials: four 1inch 90 degree elbow, one meter 1 inch plumbing pipe, cut, pipe glue The above materials can be bought to the building hardware store, there are many brands to choose from, such as SAM-UK, etc.