in-place pipe restoration?

[willis]

Hello all, I would like some feedback on the in-place pipe restoration from someone who has maintained a plumbing system after this has been done. I work at a California University, and maintain a 50 year old, 6-story library that is in dire need of a re-pipe, and management seems to be sold on this process. Here is a link to a similar contractor/process. Any feedback, positive and negative would be greatly appreciated.

 

[willis]

Whoops, here is that link.

http://www.ampipelining.com/process/process3.html

 

[dicksewerrat]

I can see the benifit of this type of system. I now work with a trenchless pipe rehab contractor. However, my concern with this product would be " how do you maintain a uniform thickness of material in the pipeline?" It may be better to use a CIPP system to line your pipes down to about 3" diameter. This will give you uniform thickness and you can bridge small to medium size holes in the existing pipes.