Name 4 materials listed as acceptable for a house sewer.

Name 4 materials listed as acceptable for a house sewer.

• A. Clay, EH cast iron, EH sdr 35, SDR 40+80
• B. PVC, ABS, CPVC, Copper
• C. Clay, EH cast iron, EH sdr 35, SDR 40+80
• D. Aluminum, Brass, Nylon, Ceramic

Answer: (C)

Pipes buried to carry wastewater must be able to withstand soil pressure, potential movement, and exposure to sewer contents without leaking or failing. The materials listed—clay, EH cast iron, EH sdr 35, and SDR 40+80—are traditional or specially rated options that codes recognize for underground sewer service because of their proven strength, durability, and resistance to sewer conditions. Clay pipe has a long track record of in-ground use with good chemical resistance and rigidity. Extra-heavy cast iron provides exceptional strength and quiet operation under load. The heavy-walled PVC options labeled EH sdr 35 and SDR 40+80 indicate thicker walls and robust joints, tailored for buried installation where a reliable, leak-tight sewer line is needed. Other materials in the other choices aren’t listed as acceptable in this particular code set for a house sewer.

Pipes buried to carry wastewater must be able to withstand soil pressure, potential movement, and exposure to sewer contents without leaking or failing. The materials listed—clay, EH cast iron, EH sdr 35, and SDR 40+80—are traditional or specially rated options that codes recognize for underground sewer service because of their proven strength, durability, and resistance to sewer conditions. Clay pipe has a long track record of in-ground use with good chemical resistance and rigidity. Extra-heavy cast iron provides exceptional strength and quiet operation under load. The heavy-walled PVC options labeled EH sdr 35 and SDR 40+80 indicate thicker walls and robust joints, tailored for buried installation where a reliable, leak-tight sewer line is needed. Other materials in the other choices aren’t listed as acceptable in this particular code set for a house sewer.