I am installing an a stand alone island and need to reroute the ventilation for sink and dishwasher. I can either
A. Put in an air admittance valve under the sink
B. Run the ventilation under the slab and up through another wall about 9’ away
thoughts on the best option?
So for some reason I have two cold water lines feeding my kitchen. Is this normal? Also because of this the shutoff I have in the garage at the soft water unit works for the whole house except the kitchen. I have added a photo to this thread. What are my options?