Fresh water dump inside help
We store our Grand Design ST3740BH-R in a barn on our property with a 50A hookup over the winter. In preparation for our RV season, sanitizing and flushing of the water system is a must. The issue I'm...
Forum Discussion
Get a sewer cap with a normal water hose connection such as a Camco RV Sewer Cap 39465. Use the onboard pump to drain the fresh water to the sewer tank that is connected to a normal garden hose.
