San Diego’s recycled water project is facing roadblocks at a crucial time, partly thanks to an unusual problem: the city is running short on sewage. San Diego is aiming to make reused sewer water drinkable and widespread within a matter of years. The project is branded Pure Water. The city operates an outdated sewage treatment plant at Point Loma. For years, the city has avoided spending $2 billion to upgrade the plant by promising to build Pure Water.