How to make an underground connection to 4 inch clay drain pipe

drainpipe

I need to connect to an existing 4" clay drain pipe opening that will be underground, and I don't want dirt/sand to enter the joint. Are there connector pieces that form a tight joint? For extra protection, would it make sense to wrap the joint in landscaping fabric held by zipties?

Thanks

Best Answer

Generally you use something like this:

https://www.homedepot.com/p/4-in-x-4-in-PVC-DWV-Mechanical-Flexible-Coupling-P1056-44/100372298

The worm drive and rubber make a good bond. This is used in vertical and horizontal sewage applications both residentally and commercially so I wouldn't bother with landscape fabric and zip ties. Chances are if you are joining to tile the tile will be replaced at some later stage down the road.

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