I am installing 1/2" copper pipes to supply water to my own new gas heater. The pipes need to pass around corners that are full of obstacles. I am not a professional plumber but know that I normally would need to use various kinds of compression fittings to connect pipes in order to go around the obstacles.
However, I also notice that flexible tubes like the one shown in the pictures are available. And actually, below the basin, these tubes are used to connect the faucet to the water supply valve. Now, I am wondering if these flexible tubes can be used in the section that go around the corner instead of copper pipes connected by various kinds of fittings.
Is it a practical solution? Copper pipes installed by professional plumbers rarely involve flexible tubes so I am wondering if there are some other concerns I'm not seeing. Note, the pipes are installed indoor only.