Camco TST Orange Power Holding Tank Treatment 64oz

Nobody loves dealing with the black tank, but a good holding tank treatment makes the whole job a lot easier. The Camco TST Orange Power is a liquid treatment that goes right down the toilet, gets to work breaking down solid waste and tissue, and keeps odor from creeping up into the cabin. One 64-ounce bottle handles most of a season for weekend use, and each 2-ounce dose treats a 40-gallon holding tank.

Here's what actually happens in a holding tank. Waste and paper sit there, sometimes for days, and without help they don't break down evenly. You get clumps, you get buildup on the walls, and you get smell. TST Orange Power goes to work so the contents liquefy instead of piling up. That means the tank empties cleaner at the dump station, the sensors read right, and you're not fighting a stink every time someone opens the bathroom door.

The orange scent is the part people remember. It's a real citrus smell, not the heavy chemical perfume that just trades one bad odor for another. Pour it in after you dump, add fresh water, and the cabin stays livable even in August heat. Camco rates the odor control at up to seven days, which lines up with how most boaters and RVers run a tank between dumps.

No formaldehyde. That matters for two reasons. First, formaldehyde is harsh and plenty of marinas and campgrounds won't take it at their dump stations or septic systems. This formula is septic-tank safe, so you can dump wherever you're allowed without worrying about killing the bugs in a septic field. Second, it's just easier on your nose and on your tank seals over the long haul.

One feature that gets overlooked is that it lubricates your tank sensors. If you've ever had a black tank that reads full when it's nearly empty, you know the frustration. Waste and toilet paper cake onto the sensor probes and throw off the reading. The lubricating action in TST Orange Power helps keep those probes clean so the gauge on your panel actually tells you the truth.

This works the same in a boat holding tank as it does in an RV. Marine sanitation systems and RV black tanks share the same basic problem, waste sitting in a warm tank, and the same solution. If you run a cruiser or a liveaboard with a marine head, this is the kind of thing you keep a bottle of in the locker. Weekend anglers with a small enclosed head benefit too, especially through the summer.

Dosing is simple. Two ounces per 40 gallons. Got a smaller tank? Scale it down a bit. Running in real heat or seeing heavy use? Don't be shy about a touch more. Add it after every dump along with a few gallons of fresh water so the treatment has something to mix into. That water at the bottom of an empty tank also helps everything slosh and break down as you drive or motor.

A quick word on habits. Tank odor is almost always a maintenance problem, not a product problem. Treat the tank every time you dump, keep some water in there so waste never dries out and cakes, and don't let a black tank sit full for a week in the heat. Do those three things and TST Orange Power has an easy job. Skip them and no treatment on the market can fully save you. This is a tool that rewards a little consistency, and once it's part of your dump-station routine you stop thinking about the tank at all, which is exactly the point.

The 64-ounce bottle is the value size. At 2 ounces a dump, that's roughly 32 treatments per bottle, so a weekend boater or camper can go most of a season on one. Keep the cap tight and store it out of direct sun. It's a straightforward, honest tank treatment that does the three things you actually want. It breaks down waste, it kills odor, and it keeps your sensors honest.