The dogs aren't the problem.
How old are the breeders?
Again, I am not familiar with the food. what is the nutritional breakdown?
Can you post a picture of the setup?
What are you using for substrate?
Just an observation... you should be able to pull the kids out earlier then a day before the mom delivers the next batch. I pull mine out the moment their eyes are open.
Another observation... And it is just my opinion... Automatic water systems are way more trouble then they are worth, especially if you have a small colony of only 10 tubs. Problems with them are the norm, not the exception.