Hello. I have just moved into a new condo which has a double sink with disposal unit in kitchen.
When I wash the dishes I fill the deposal side and use it to wash the pots. The other side I fill with clean water to use as a rinse. When I unplug both sinks and turn on the disposal it all works except after a short period I get very fine bubbles coming up on the rinse sink. In my last house this did not happen.
Any ideas on fix.

Does this happen when the disposal's on or off? Back to you, Tom