LOS ANGELES (CBSLA) — As the state grapples with the ripple effects of the coronavirus outbreak, California’s Water Board says residents should not flush disinfecting wipes or paper towels, or risk dealing with backed-up plumbing and sewers.

Across the state, toilet paper is scarce and many consumers have turned to paper towels, flushable wipes and other products. But the State Water Board warns that anything other than toilet paper will “clog sewers and cause backups and overflows at wastewater treatment facilities, creating an additional public health risk amid the coronavirus pandemic.”

Even wipes labeled “flushable” will clog pipes and interfere with sewage collection, according to the Water Board.