What are some of the most common mistakes you see with diy plumbing attempts? The number one mistake is forgetting to turn off the water supply before. Webone common mistake is using a regular wrench instead of a pipe wrench or using chemical drain cleaners frequently, which can corrode pipes over time.

Webhowever, it’s essential to recognize that not all plumbing tasks can or should be tackled as diy projects. Striking the right balance between managing simple fixes.