I drained my heat exchanger out today and replaced the drain plug with a petcock and 2ft of 3/8 hose so I can easily drain it out the rear transom hole. I usually have to take the end cap off of the heat exchanger to drain it out . Now I can use it during the winter and just open the petcock and let it drain out without any trouble! Makes life easier.I also gave it a good washin inside and out. Im ready for the striper season!