Roebic is a well-known brand in the industry, and its foaming root killer has been used successfully by many homeowners. Whereas, Green Gobbler is another product that has gained popularity for its lower cost. While it may be cheaper, the effectiveness can vary, and it may not be as reliable as more established brands like Roebic.

When choosing a foaming root killer, it's essential to consider the following factors:

The severity of the root intrusion in your pipes can affect the product's effectiveness. For minor root problems, a less expensive option like Green Gobbler might work, but severe root blockages might require a more potent solution like Roebic FRK.

Also, different pipe materials may react differently to root killers. Ensure your product is safe for your specific pipe material.

A big honking drain machine with root cutter is often necessary if there's enough roots to restrict flow. Even dead roots block flow and take time to rot and be swept away. Once clear lines can be maintained with chemicals. Have you put camera in lines or how do you know there's roots in lines? Is the city sewer or septic,there's a difference in how and when chemicals are used.

Thanks. So you're saying that Roebic is more potent than Green Gobbler? That latter is vastly cheaper, so it would be easy to use a lot more. The question is whether the effectiveness of one versus the other is known.

Oh, we have a 150 year old oak about six feet away from our front toilet, and we've had plumbers in occasionally to do root cutting. City is sewer, and these root killers are allowed. We're talking about maintenance.

Sounds like "The Three Ps" is more important than anything else so a few phone calls should answer that.

Not sure what "The Three Ps" refers to. I want something to put down the drain to kill roots. Phone calls don't do that. This is NOT about removing a big clog that is restricting flow. This is about maintenance strategies to prevent one.