We had a guy install drainage pipes 7 years ago to take the water from downspouts around the house and direct it into the woods behind the house. He used black inside / white outside plastic pipe. I think that's called ADS? the pipe doesn't have any holes along its length. I remember when the guy was trenching, he said he hit lots of rocks and mentioned how he put them back in. a) there's a pitch problem along a stretch. I dug up 20 - 30' of the run. Loads of big rocks above / along side and below the run. Those get pushed up over time and can cause the pitch to change, right? ie putting big rocks back in the ground around the pipe - is that a good idea? b) would you put that pipe back in the ground or use PVC? Looking into the pipe still in the ground, It's not round... a bit of an ellipse now. PVC won't deform. But might break from rocks / shifting ground? c) if you say put the ADS back in the ground, what do you use to join them? It looks like they used caulk or similar that didn't bond to the joints.. THANKS!

I'm looking to buy 2 items, 1 1/4" Close nipple and a 1 1/4" to 1" Brass reducing coupler. I want it made in the US and zero lead if possible. It is VERY difficult to find what I'm looking for. Any suggestions?