Our double-basin stainless steel kitchen sinks backed up, and traditional unclogging methods didn't work to dislodge the clog.
Drāno didn't work, and removing the P-trap and snaking the drain from the inside didn't work.
Snaking the drain at the clean-out port outside with both a regular drain snake and multiple attempts with a friend's power snake didn't appear to work either (nor did multiple attempts to flush the line with water from a water hose), but our friend saw a single dose (8.25 oz) packet of Green Gobbler when shopping for an extension part for his power snake, and he picked one up for us. Because our clog had been so persistent, we skipped the initial Instructions for Use, and we went straight to the instructions that read:
Note: For tough clogs, use 2nd Pac and let stand in drain overnight, then flush with plenty of hot water. (For best results, use boiling water, if possible.)
I called my husband this morning and asked if the Green Gobbler had been effective. I believe his words were, "Hot damn!" He said he'd poured about 10 gallons of boiling water (who knew we had that many containers for boiling water?) down the drain, and it hadn't shown any sign of backing up. He later told me that he'd also run cold water for several minutes, and that didn't appear to back up, either.
So, at least for now, it appears that the clog was dissolved and that we don't need to contact the water district or call a plumbing company.
Bottom Line: Yes, I would recommend this to a friend
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