On Tuesday, November 29, 2016 at 11:16:54 PM UTC-5, bob haller wrote:
On Monday, January 31, 2011 at 10:02:13 PM UTC-5, Vic Smith wrote:
On Mon, 31 Jan 2011 17:03:00 -0800 (PST), DerbyDad03
wrote:



What size dosage? A cup? A pound? 25 pounds?

What's a "regular interval"? Every week? Every month? Every quarter?

Right there I've got 9 possible sets of "repeated dosages at regular
intervals", but still no clue as to what is the optimum.

With all the "science" I've seen posted in this ng across a variety of
topics, I'm surprised no one knows the correct amount and time frame.

Probably because nobody here has used rock salt to kill roots.
When I had a sewer root problem I bought a root killer for that, can't
remember which one.
But there were instructions on the box (or bottle).

--Vic

I have been using rock salt to kill tree roots for at least 20 years. i do the 25 pounds split over a few days in the early spring when trees are about to bud out. works great, cant kill trees. killing a tree with root killer can cost thousands to remove a mature dying tree

As long as we've revived my very old thread, thanks to HOH, I'll tell you
of my root experience since then:

Rock salt did nothing to help. I eventually had the drain scoped and
determined that the roots were entering the clay pipe from the *top*
They would hang down and catch toilet paper, eventually causing a
blockage.

Rock salt laden water flows along the bottom of the pipe and doesn't make
enough contact with the roots to do much damage to them.

Since that time I have been using 2 pounds of RootX in the early spring.
RootX foams and fills the pipe, coating the roots that hang from the top.
I haven't had a blockage in the 5 years since I switched to this process.

http://rootx.com/homeowners

Does RootX Harm Trees And Plants?

No. RootX only kills the roots inside the pipe and prevents their re-growth..
Since the RootX foam only flows through the pipe, it has no effect on roots
outside the pipe.