Do Ice Cubes in the RV Black Tank Really Work?

I've had good success with ice in the tank and so have many others. 3-4 bags is what I use. DO it about twice a year and make sure its before getting ready to run down a windy road. While it may not clear all the sensors it does help break down the turd teepee underneath the can. Dump the tank when I get home and it comes out looking like pooh soup.

Try it, you might be surprised...