Dishwasher Far Away From Sink - Waste Line Problems

Thadius856

Adding a dishwasher and garbage disposal where there wasn't before. Because it's a small U-shaped kitchen, the only two options that made sense were to the left of the sink between the fridge, or to the right at the center of the "U". I chose the latter.

Already ran new electrical and stubbed out a new supply line for it because I didn't want to run flex under the cabinets (Ikea cabs on legs). Now I'm having headaches with figuring out the waste line for it. My options so far seem to be:

1. Dishwasher, to factory high loop, to flexible plastic tubing running under the corner cabinet legs, to air gap at sink, to garbage disposal port.

2. Santee into 1-1/2" bath tub waste line between the tub drain and the P, then run a stand pipe.

Which is the better option? #1 seems to carry the risk of the tubing leaking under the cabinets and not being noticed immediately, but #2 seems to carry the risk of a waste backup into the dishwasher if the P clogs before the vent stack.

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Current Project: Whole House Data Wiring
Back Burner: Drywall Patching
Planning: Kitchen Reno