Plumbing question: is it possible to convert an existing toilet floor drain so that a utility/slop sink could be used instead of the toilet? Thanks for any advice.

It's just a bigger hole in the floor! Looks something like this, a floor drain for a shower. Screw it to the toilet ring and then use PVC. Make sure you use a good seal of silicone and a trap.

https://encrypted-tbn0.gstatic.com/i...xFQwtI46O6LmYh

Thanks for the advice!

To avoid installing a "S" trap you can install a AAV or run a vent up to the attic and revent back into a existing roof vent. Good luck, Tom

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To avoid installing a "S" trap you can install a AAV or run a vent up to the attic and revent back into a existing roof vent

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Exactly, a vent would need to be added for this to work correctly!

Good luck!

Mark