Welcome to the forum...from the great white..eh ..I mean green north.
Love your puppies...they're so cute.
I don't know anything about poop chutes. My former sheltie, Sassy, and the one I have now, Mya are both sables and they never had any dingleberry problems. I think the only time I've had problem with dingleberries is when it they ate something wrong and it turns runny. By then...even a poop chute will not do the job.