How can you remove obstacles in the return pipes swimming pool without digging up pipes?

There are several methods to remove obstacles in the return pipes of a swimming pool without having to dig up the pipes. Here are a few options:

1. Plumbing Snake: A plumbing snake, also known as an auger, is a long, flexible metal cable with a rotating head that can be inserted into the return pipe. By turning the crank, the snake can be guided through the pipe and can break through any clogs or obstructions.

2. Hydro Jetting: Hydro jetting involves using a high-pressure water jet to blast through clogs and debris in the return pipes. A specialised nozzle is attached to a hose, and water is pumped through it at a high pressure. This water jet can effectively dislodge and remove any obstacles in the pipes.

3. Chemical Treatment: Certain chemicals can be used to dissolve or break down clogs in return pipes. These chemicals are typically formulated with enzymes that target specific types of blockages, such as grease, hair, or soap scum. The chemicals can be poured into the return pipes and left for a specified amount of time before flushing them out with water.

4. Compressed Air: Compressed air can be used to push through obstructions in return pipes. A compressor is connected to the pipe, and pressurised air is released into the line, creating a powerful force that can dislodge blockages.

5. Drain Cleaning Chemicals: There are various chemical drain cleaners available that are specifically designed to dissolve clogs and remove obstacles in pipes. These chemicals should be used according to the manufacturer's instructions, and caution should be taken when handling them.

It's important to note that the method you choose will depend on the nature of the obstacle and the specific construction of your swimming pool's plumbing system. If the obstacle is particularly difficult to remove or if you're unsure how to proceed, it's best to consult with a qualified pool maintenance professional.