I winterized the Scamp this past week as we had a temperature prediction of 17 degrees in CT, It went fairly well except for the removal of the 7/8 inch white plastic bolt in the water heater panel. A 7/8 inch wrench and a 7/8 inch socket are too small for the bolt. A 1 inch wrench and 1 inch socket are too big. I finally removed it with an adjustable wrench, not the best procedure for a "plastic" bolt. After I drained the system, I reluctantly but the bolt back in, but I would like to replace it with something more substantial. Has anyone replaced the plastic bolt with a brass or stainless steel bolt? Do you have a source? A part number?
Also, as we have the 13' front bunk model and the video said to use a gallon or two, I poured one gallon of RV antifreeze into the water tank and turned on the electric pump. Antifreeze came out of the cold water side fairly quickly but very little came out of the hot water size. I assume that one gallon spread out in the bottom of the tank and made it difficult for the pump hose to reach it and would recommend using two gallons.