How to Use a Dog Shampooer | Wash Your Dog Right

Washing a dog at home usually turns into a soaked bathroom and a wet mess on four legs. A dog shampooer changes that by combining a spray nozzle, a clean-water tank, and a dirty-water tank into one tool. Figuring out how to use a dog shampooer properly is the difference between a calm bath and a struggle. The good news: the basic routine is simple, works with any shampoo, and takes about 15 minutes once you know the order of operations.

Understanding the process matters because getting it wrong means soap left in the coat, water in the ears, or a matted mess that takes longer to fix than the bath itself. This guide covers the full routine, the maintenance that keeps the tool working, and what to do when you’re using a medicated shampoo.

How The Shampooer Works: The Basic Process

Every dog shampooer follows the same core logic: you spray water onto the coat, apply soap, work it in, and rinse it away. The unit holds a clean-water tank on one side and a dirty-water tank on the other, so the water you spray out gets collected by the nozzle as you go.

The routine breaks into five steps:

• Fill the clean-water tank with warm water
• Prime the hose or sprayer until water flows
• Wet the coat thoroughly in passes
• Apply shampoo and massage it into the fur
• Rinse completely, then empty the dirty-water tank

Run the spray in a forward-and-back pass pattern while you work, and pause to check that the coat is wet to the skin, not just on the surface.

Using A BISSELL BarkBath Step By Step

The BISSELL BarkBath is one of the most common dog shampooers on the market, and its setup is straightforward. Place the unit on a high, flat surface so the hose reaches your dog comfortably. Fill the clean-water tank with tap water that’s warm to the touch, stopping at the fill line, and attach the bathing tool.

Then prime the system: open the shampoo tank cap, press the trigger for 15 to 20 seconds onto a microfiber mat or towel, and add BISSELL No-Rinse Dog Shampoo before closing the reservoir. Set the switch to Rinse or Shampoo, then spray for 15 to 20 seconds until the solution dispenses. Brush your dog first so the nozzle can pass through the fur without snagging knots.

When you finish bathing, disconnect the hose and empty any remaining water into a sink. The BISSELL manual also calls for emptying the dirty-water tank and refilling the clean-water tank as needed during longer washes. See our tested roundup of the best dog shampooers if you’re comparing models before buying one.

Bathing Basics That Apply To Any Dog

Wet your dog completely before applying shampoo. Water that’s too hot or too cold makes the experience miserable, so aim for lukewarm. Keep water away from the head entirely — running water near the ears is uncomfortable and can cause issues. Don’t use cotton wool in the ears, either; just angle the spray away from the face and use a damp cloth for the head if needed.

Apply shampoo to the most affected areas first, and dilute it if the label calls for it. Skip the hair dryer and use a towel instead, because excess heat can irritate a dog’s skin. Bathe in a tub with a spray nozzle or hose attachment, or work outdoors where drainage won’t be a problem.

Medicated Shampoos And Special Considerations

Medicated shampoos follow a slightly tighter routine. Wet the coat thoroughly with warm water, apply enough shampoo to create a rich lather, and massage it into the coat. Let it sit for 5 to 10 minutes, then rinse completely.

Two caveats matter here. First, don’t leave any shampoo in the coat beyond the labeled contact time. Second, the BISSELL BarkBath is designed to work with BISSELL No-Rinse Dog Shampoo, so check compatibility if you’re using a different product. For medicated formulas, follow veterinary directions and confirm the shampoo works with your shampooer before you start.