Black slime inside of PVC drains.

[fred1949]

My question is....Is there a chemical that will remove the black buildup that gets inside of my PVC sink drain & drain pipes? I am on a septic tank so I have to be careful what I use.

Thank you,
Fred

[HayZee518]

Done a quick search on the web and came up with this stuff - Roebic K-67 Bacterial Drain and Trap Cleaner

[fred1949]

Thanks HayZee518 I'll give it atry.

Fred