Tag: bathroom sink drain size

If you’ve ever tried replacing a bathroom sink or fixing a slow drain, you’ve likely run into a frustrating mismatch: your sink tailpiece is 1 1/4 inches, but your drainpipe or P-trap is 1 1/2 inches. This common plumbing puzzle—bathroom sink plumbing 1 1/4 to 1 1/2—can lead to leaks, clogs, or even water damage…