Prowler Trailers Need Help With Prowler Travel Trailer! Where Do I Check To See If It Has A Holding Tank? How Do I Flush Out?

Need help with Prowler Travel Trailer! Where do I check to see if it has a holding tank? How do I flush out? - prowler trailers

I see where the water goes into the wash tank with antifreeze in innocence. Am I obligated to make the pump? Theres a switch on the pump when the tank water for washing? How do I fill? How can I make sure that propane and works well? Everything you can before they think of this crazy road? It is a model 1995