Hello All. I have a 2018 Redhawk 26XD. I tried to winterize it today - didn't work, not sure what the problem is. I followed the directions in the manual so I'm pretty sure I did it correctly. I emptied the water heater, drained the tanks, removed the water filter and bypassed the water heater, closed all the drains. I set the dials on the control panel for Sanitize/Winterize and connected the hose to a gallon of RV antifreeze. I turned on the water pump and it drew in about 1 quart of antifreeze and then stopped siphoning anymore. I opened up the bathroom faucet and nothing came out but I could hear the water gurgling, I tried other faucets with the same result. About 30 minutes later water and antifreeze came out of 1 faucet. I kept it running for about an hour and only a few additional ounces of antifreeze were drawn in but no more water/antifreeze came out of the faucet. The RV is fairly level - 2 or 3 degrees off. I kept checking the water pump and it continuously ran and did not get hot. Any thoughts are greatly appreciated.