Cdrmar

[Cdrmar]

About to settle in an RV park in New Mexico for the month of Sept. park has a service that pumps out tanks twice a week. Is there any thing I need to do to keep the service from damaging the tanks. Never done this before. The company is local and has a dedicated rig to do this.

[n2916s]

Nope. Your roof vents are large enough to deal with the vacuum the honey wagon generates.

[BigSxyWhtGuy]

It will likely be your grey tank that gets drained twice a week. I’ve always let my black tank fill more and allow the chemicals to liquify everything. It won’t hurt to drain the black tank at 20% full, you’ll just burn through your chemicals faster