Have double kitchen sink with disposal on right side... sinks drain REALLY slow, like over night to get rid of 2 inches of water. I have snaked the pvc under sink with 25ft auger 5 times and today snaked vents on roof and still nothing. Resorted to drain gel this afternoon and still nothing. With empty sink I pour about a gallon of hot water in either side and it just fills disposal and pipes under sink & then come up both drains and levels out... completely frustrated. Also, this is like the 3rd time it's happened in the last 8 years and have tried same things I'm trying now that I have in the past... previous 2 times after munerouse tries of snaking (no clogs found) and such it just magically works... I NEED HELP! I need to do my dishes!