Help please

Question
About 2 weeks ago we adopted a long haired miniature dachshund from a family. They said the reason they were giving him away was because they had too many dog (6 total). He wasn't neutered, but we had it done last week. So here's my problem, he won't use the bathroom outside. The first day we brought him home, he didn't go for the first 30 hours we had him. Then we left him home alone, where he barked the whole time we were gone, and pee on the carpet. He then started to pee a poo sometimes when I took him outside, but it would take at least 10 minuets and I would constantly be pushing him because all he wants to do is sit or lay down. Sometimes he would sniff around like he had to go, but would do nothing. Well, things have gotten a lot worst after we had him neutered. I started locking him in the bathroom when I leave and making sure I take him out first thing in the morning, night,in the middle of the day, and before we leave to go anywhere. He never seems to show to much interest in being outside or going to the bathroom, but I tell him to "Go Potty" and walk him around for a while. He doesn't go to the bathroom, so I end up giving up. So I lock him in the bathroom, do what I have to do and then come back home to find a mess. Every time I've left him home in the past week he has either pee, poo, or both by time I come back. It's like he waits until we leave to do it, even though  I take him out. I've even tried putting him in his crate hoping that would keep him from using the bathroom while I'm go, but he does it anyways. We're at the end of our rope. I don't want to give him away, but I feel like I've done everything I know how to do. Please help me as soon as you can!

Answer
It could be the previous owners used harsh house breaking methods and he is afraid to eliminate in front of you.  Or even he is used to being with the other dogs outside in a fenced yard.  Try tethering outside and withdrawing out of his sight.  I he does anything, lavish praise and a treat on him.  

Crating may help.  It is only natural that a puppy resists its crate at first. What the puppy wants more than anything else is to be others, you, anyone else in the household, and any other pets. In our modern society, even if we are home, other things distract us from the attention an uncrated puppy must have. The only real solution is to crate the dog when you aren't around. The dog may be happier in its den than loose in the house. It relaxes, it feels safe in its den. It rests, the body slows down reducing the need for water and relieving its self. Dogs that have been crated all along do very well. Many of them will rest in their crates even when the door is open. I think the plastic ones give the dog more of a safe, enclosed den feeling. Metal ones can be put in a corner or covered with something the dog can't pull in and chew. Select a crate just big enough for the full grown dog to stretch out in.

Leave it some toys. Perhaps a Kong filled with peanut butter. Don't leave anything in the crate the dog might chew up. It will do fine without even any bedding. You will come home to a safe dog and a house you can enjoy.

A dog that has not been crated since it was little, may take some work. Start out just putting its toys and treats in the crate. Praise it for going in. Feed it in the crate. This is also an easy way to maintain order at feeding time for more than one dog.

The "shut the puppy in a safe room" is a fallacy. Very few houses even have a safe room. How many of us have a room with a hard surfaced floor and nothing else? Most rooms have electrical cords to chew if nothing else. In addition to destroying anything a bored puppy finds to chew, it may choke or have intestinal blockage from the pieces. I had a friend that left her dog in a "safe" room. It ate a hole in the floor covering. The safe rooms fail to give the dog the comfort of the enclosed space their instinct requires. Nor do they restrict activity extending the time the dog can go without relieving itself.