My bad the product is ADS not ABS. Here is a link to their website. http://www.ads-pipe.com/en/index.asp

They carry a product with a water tight joint which is what I used on my last project. I used the collar type on my first pond and seal the joints with silicon and poured concrete around each joint have had no issues 10 years thus far. I believe the amount of seepage is a non issue even if you don't do anything but in stall it as built. Good luck



The road goes on forever and the party nevers end...............................................