You have a tough bathroom rough-in. The layout is shower, toilet, then sink. The 4-inch main drain runs under the toilet. It is also about 4 feet deep. You are thinking about horizontal wet venting. That can work for many bathroom groups. But the details matter. Quick Q&A Q: Is a 4-foot vertical drop from… Continue reading Deep Main Drain? Wet Vent This 3-Fixture Bath
Month: January 2026
Old PVC Outside? Safe to Use for Vent Pipes?
You found a 2-inch Schedule 40 PVC that sat outside for years in NYC. It was a makeshift gutter runoff on a shaded wall. It saw cold winters and wet weather. Now you want to reuse it for plumbing vents. Quick Q&A Q: Can I reuse old outdoor PVC for my vent pipes? A: Maybe,… Continue reading Old PVC Outside? Safe to Use for Vent Pipes?
Toilet to Stack: San-Tee or Wye? Best Pick
You are tying a toilet drain into a vertical soil stack. The toilet is separately vented. You keep reading two answers. Some say use a sanitary tee. Others say use a combo wye and 45. So which one is “right”? Quick Q&A Q: What is the preferred fitting for a horizontal toilet branch into a… Continue reading Toilet to Stack: San-Tee or Wye? Best Pick