TankTechsRX: Eco-Friendly and Spotless TankToolRx for Clogged Tanks Review

Easy to use. They helped clear the clog quickly and cleanly. It says you need Johnny's crayon, so we just made one out of our pipe.

It was done very well. In contrast to a straight bar, this one allows you to direct pressure to the side and release blockages more easily.

Good product. Works as advertised. I use it by throwing it in the vent of our caravan. This allows me to leave the drain hose connected and not go to the bathroom indoors.