Guess what I'm doing this weekend.

Anyone have a better idea?  I got this from here.

Dog Urine Smell and Stain Remover Ingredients Baking Soda White Vinegar Liquid Dishwashing Detergent 3% Hydrogen Peroxide

1.
If the area is still wet you should first attempt to absorb the dog urine. Leaving it there to dry out will only encourage bacterial growth which causes the smell. The best method is to place several layers of paper towel over the wet area and tread on it so as to soak up as much of the dog urine as you possibly can. You may have to repeat this several times until no more dog urine can be soaked up.

Sometimes dog urine accidents have already dried because you did not notice them previously. You can find dried urine spots on your carpet with the aid of a black light. The dog urine stains will fluoresce under the ultra violet light in a darkened room. Hand held black lights are quite inexpensive usually costing between $15 - $25. Of course, you can always save the expense of a black light to find the odors by using your nose instead.

2. The next step is to mix a solution of fifty percent white vinegar and fifty percent water. You must use a liberal amount of this solution to reach the carpet fibers deep down. Work the solution in with a scrubbing brush to ensure it penetrates the carpet fibers below. Next step: Blot the area again using the paper towel method above. The vinegar will neutralize the ammonia in the dog urine. If you own a wet/dry vacuum extractor use that to remove excess moisture. 3. When the area has dried or almost dried sprinkle a good handful of baking soda over the soiled area. Mix half a cup of 3% hydrogen peroxide with a teaspoon of detergent. Plain liquid dishwashing detergent is quite suitable. Do not use caustic dishwasher detergent.

Put on a pair of rubber gloves and slowly pour the hydrogen peroxide and detergent mixture over the baking soda. Work the dissolving baking soda well into the carpet with your fingers or with a scrubbing brush.

Blot again and allow the area to dry completely. Then vacuum up the baking soda thoroughly. Use a hard bristled brush to loosen up the baking soda if necessary. That's all there is to it. Your carpet will smell fresh and free from urine odor.

If you don't have hydrogen peroxide on hand you could substitute it in an emergency for a spray laundry stain remover. Check the bottle. If it says 'Oxy' anywhere on the label then it probably contains hydrogen peroxide.

In areas that have been heavily soiled with dog urine you may have to repeat the process again.

This recipe is for one small area of dog urine. For larger areas you will need to adjust the quantities of ingredients used.