06/01/2026
Most RV owners think about the tank.
Very few think about the plumbing.
That’s where many problems begin.
When we inspect RV waste systems, we’re not just looking at the holding tanks. We’re looking at the entire plumbing system that feeds them.
The average RV gray tank plumbing system is only about 1½ inches in diameter.
Think about everything that travels through it:
• Hair
• Soap residue
• Grease
• Organic matter
Over time, restrictions can develop that lead to slow drains, odors, reduced performance, and other issues.
Here’s another fact many RV owners don’t know:
Drain flies are not typically caused by tank buildup. Leaving a gray tank valve open for extended periods can allow sewer gases and pests to enter from the campground sewer system.
At RV Tank Cleaning of Eastern Florida, we’ve serviced more than 1,200 RV waste systems. One thing we’ve learned is that understanding how your system works is often the first step toward avoiding expensive problems.
That’s why we support the educational mission of IRWST (Institute for RV Waste Systems Technology).
Education.
Prevent.
Maintain.
What gray tank question have you always wanted answered?