RedDirt said:I need to differ with you on that. I had a big explanation written but TNB ate it before I could post. Suffice it to say that forensic evidence at failed drain systems of sock wrapped perf pipe found that the socks actually clogged the holes. The surface area of the holes is so small it does not take much for them to clog.
Standard practice now is to encapsulate the entire drainage gravel bed with woven, not felt type, filter fabric. That's drain applications. Of course, only the top of the gravel bed of a septic leach line is covered and sometimes it is covered with rosin paper or saturated felt, not filter fabric.
.
I will consider that as an option, as soon as the first piece of tile I have installed log ago, fails. While I wait, I will suggest that If the bed is properly prepared with the proper stone, and fabric(s), It can work just fine. Mine does, and I put in a lot of it.
Just as with stapling on roof shingles, if you used the right technique, it worked just fine. Though anyone you ask will tell you that doesn't work either.