Can You Use a Fernco Underground?

Marcus Vance
Marcus Vance
• • 6 min read

Teh All Rubber "Fernco" Is Only Permitted Underground "Outside" the Building. the Banded Ones Are Used Indoors, and If They Could Not Be Used Underground There...

Can You Use a Fernco Underground?
Teh all rubber "Fernco" is ONLY permitted underground "outside" the building. The banded ones are used indoors, and if they could not be used underground there is no way we could install cast iron drain systems.

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Herein, can you bury Fernco?

A unshielded fernco should never be buried. Instead use a shielded coupling that is meant for direct burial in dwv.

Additionally, can no hub couplings be used underground? Mission and husky couplings are allowed underground here, no hubs aswell.

In respect to this, can Fernco couplings be used above ground?

You will not find it in the code that it is not allowed however in the both ICC and IAPMO testing sheets said they can only be used under ground, above ground you will have to use there sheilded coupling or nohub coupling. Both couplings will hold a water or air test.

How long does a Fernco coupling last?

about 10,000 years

Related Question Answers

Can flexible PVC be buried?

Flexible PVC pipe is simply not suitable for underground use, but don't take my word for it. PlumbingSupply.com has this at the bottom of their flexible PVC page: "Note: Spa Hoses can be damaged by rodents or insects, including termites."

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Can you bury PVC compression fittings?

The pipe or tubes attached to a compression fitting must be firmly held in place, if not buried they should be strapped down tightly. If the pipes or tubes can shift or move the compression fitting will not hold! These compression fittings are only for rigid pipes, like PVC or metal.
Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher
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Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.