Winnebago View Profile 24V Gray Water disposal

You are correct, the only way to drain the gray water is using the macenator pump and yes you do have hold it down the entire time. I wish it had gravity disposal but it doesn't and I did not find this out till we did our PDI. It really has not been a problem for us yet but then we have not stayed very long in a camp ground either. It also takes 2 gallons of the RV Anti-freeze to winterize the macenator too.