Is Drano bad for tubs?
Is Drano bad for tubs? Drano® Dual-Force® Foamer Clog Remover will not harm sink or tub surfaces and fixtures (including materials like plastic, porcelain, ceramic or metal), when used on clogged drains according to label directions. Product may foam up from the drain; this is normal. What do you need to know about a bathtub drain? Here are a few bathtub drain schematics and bathtub plumbing diagrams. Fairly simple drain system. If you have to hold your drain lever down for the tub to drain it is more than likely the tension spring on the back of the overflow plate....