Plumbing, ditching, sewer lines and pipe inspection analysis

[mrmikey]

There was an episode of This Old House a few months back with a somewhat sililar problem. They had a system of inserting a sock impregnated with fiberglas resin into the existing pipe, inflating a pipe inside this one and after the resin sets, you've got a new pipe. Mind you that was a simple explanation but it'd be worthwhile looking into. I just forund a link Formadrain No-Dig Sewer Pipe Repair Technology - Cured in Place Liner, CIPP, Trenchless Technology ...Mike

 

[sdkubota]

There was an episode of This Old House a few months back with a somewhat sililar problem. They had a system of inserting a sock impregnated with fiberglas resin into the existing pipe, inflating a pipe inside this one and after the resin sets, you've got a new pipe. Mind you that was a simple explanation but it'd be worthwhile looking into. I just forund a link Formadrain No-Dig Sewer Pipe Repair Technology - Cured in Place Liner, CIPP, Trenchless Technology ...Mike

If the alignment is good and the pipe is fairly sound this is an alternative. However, it will probably cost more then replacing the line by open cutting.

 

[newbury]

If the alignment is good and the pipe is fairly sound this is an alternative. However, it will probably cost more then replacing the line by open cutting.

There are several "trenchless repair" companies. Their advantages are in no trench, no tree disturbance, lower labor cost. In my area, Fairfax County, VA, the unemployment rate is down to 4%, Unemployment by County in Virginia, so cheap labor is NOT available.

 

[sdkubota]

There are several "trenchless repair" companies. Their advantages are in no trench, no tree disturbance, lower labor cost. In my area, Fairfax County, VA, the unemployment rate is down to 4%, Unemployment by County in Virginia, so cheap labor is NOT available.

It isn't because of cheap labor. Lining pipe takes some specialized equipment to insert the "sock" then inject heated water or steam to set the adhesive until cured. The liner is almost like a fiberglass shell when completed. When doing large diameter projects with thousands of feet it makes it worth their while and you can get competitive pricing. To mobilize to do a single service will carry with it a lot of mobilization fees. It would be worth looking in to and I would be interested in how the price compares to open cutting. If you open cut, make sure they install a good quality rubber gasketed pipe ASTM 3034, Scd 35.

 

[Rock knocker]

If you open cut, make sure they install a good quality rubber gasketed pipe ASTM 3034, Scd 35.

Glued PVC or ABS isn't an alternative?

 

[CurlyDave]

Glued PVC or ABS isn't an alternative?

I have installed a few of these, not a pro by any means, but have always considered Glued black ABS to be the superior pipe. Never had a leak or any kind of root intrusion. Just have to be sure to apply the glue properly.

 

[ultrarunner]

Almost all trenchless now in my area...

Sewer district is replacing all the 8" mains with trenchless so they have to dig each lateral and will pull a new trenchless to the property line with a clean out at no charge...

Unfortunate for me... I paid to have mine done last year... the orangeberg was just too far gone.

Some of the neighbors are have all new laterals done at little cost... less than a $1000 since the hard work is already being done with the mains.

In front of my home, the main crosses a ridge and is down 30 feet for gravity flow from about a 100 homes on the other side...

At the time it was installed... it was the deepest residential main in the city...

I've been told the not to expect normal access to my home during the process...

 

[sdkubota]

Glued PVC or ABS isn't an alternative?

They are but are not normally specified for sewer projects. I would take rubber gasketed pipe/fittings over glued any day. They allow for some movement due to temperature changes and pretty much gauranteed a water tight joint.

 

[450EXC]

Sorry, do not have a link but im sure you can find one. Maybe look for a Tree Root Removal Video instead of relining.

It sounds like you are on the right track. If the pipe looks clean and no major damage you can save your money. You went from 2000 to 2012 with no problems ? If the pipe pipe is clean this time you might get another 12 years out of it. There are a lot of con artist companys out there trying to rip people off.

 

[ptgdigger]

Glued PVC or ABS isn't an alternative?

Every municipal sewer system in this region that I have install specs for says no glued pipe outside the foundation walls,SDR 35 gasketed pipe is now the standard because the joints can flex slightly and still pass an "air test" of 5psi for 15min. Most glued pipe installs will pass initially but fail 3 or 6 months later because of trench shifting breaking the glue bond.


We do have a problem making vertical vents and clean outs with gasketed however because "frost jacking" will bring the verticals right up out of the ground , disconnecting them ! Have to put a sleeve of larger pipe around the vertical which you can leave in or fill it with clean shale and the lift it out as you backfill.

Ray