With a sewer line locator of course
Install a one way check valve in the line from the house to the sewer.
The estimated cost of a new sewer line repairs would run you about $5500.00 dollars. It will keep the sewer and your toilets running smoothly without any clogging.
If you could keep the salt in there yes, the problem is that it washes out as soon as you put it in there so no it would not keep roots out of the sewer line.
If it is a modern PVC sewer line, there shouldn't be any maintenance cost, other than clearing an occasional stoppage (which some never have).
Sewer Line The Woodlands
With a sewer line locator of course
it is the lowest level (or downstream level) of a sewer in which sewage is being transported
The invert is the bottom of the sewer relative to the surface level of the ground. It is often expressed as the relative distance between the two levels in feet.
Sewer Line katy TX
Sewer Line Cypress TX
Sewer Line Pearland TX
The invert is the bottom of the inside of the pipe. It is the major level reference level when installing pipework of civil works, ie storm water etc.
Either they are on a separate sewer line and connect to the main sewer line later on or they sewerage is pumped by means of a machine into the main sewer line.
Sewer Cleaning Sewer Line Repair Trenchless Sewer Repair Sewer Drain Cleaning Sewer and Drain Cleaning
Snake the line
Invert elevations can usually be found directly on as-built drawings of the sewer facility. The simplest way to calculate an invert elevation of a manhole is to measure the depth of the manhole from the surface to the pipe invert. The invert elevation equals the ground or rim elevation minus this depth. If you do not know the rim elevation or invert elevation, a surveyor must measure the invert and/or rim elevation with reference to a nearby elevation benchmark (see: http://commons.wikimedia.org/wiki/Image:Elevation_Benchmark.jpg). Also, upstream and downstream invert elevations in a manhole typically differ by about 0.1 feet.