What is the 135 rule in plumbing?

[bernardh...@gmail.com]

What is the 135 rule in plumbing?

[johnnsk...@gmail.com]

The 135 rule means horizontal drain pipes cannot connect using a fitting that creates more than a 135-degree change in direction. In plain terms, you cannot use a standard short-turn 90-degree elbow between two horizontal drain lines. Plumbers use two 45-degree elbows, a long-sweep 90, or a wye-and-eighth-bend instead.

среда, 27 мая 2026 г. в 11:58:02 UTC+2, bernardh...@gmail.com:

[hallant...@gmail.com]

Trust me, any complex plumbing work should only be entrusted to certified companies. When the water pressure dropped in our country house, we called technicians from the best plumbing services in Wallingford I've ever used. They diagnosed the pump, identified the fault, and quickly fixed it. We were very pleased with their professional approach, meticulous attention to detail, and official warranty. Excellent service at a reasonable price.

среда, 27 мая 2026 г. в 12:21:27 UTC+2, johnnsk...@gmail.com: