I just completed my 10th winterization of IP35-165, Island Spirit. Here is a summary of the steps.
Pump water tank empty
Bypass water heater (connect hoses together) drain tank
1 gal into engine intake, pump to head
1 gal into engine, run until exhausts shows antifreeze
1 gal into sink, hot, cold and sprayer
1 gal into head sink and shower lines
1 gal into the AC/heat system
1 gal into deck wash & cockpit shower
1 gal for shower bilge, and bilge
To add antifreeze into the water lines, I disconnect the pump pick up line at the tank and connect it to another hose about 2-3 feet long. I then put this hose into the 1 gallon jug and turn on the pump. Using a white bowl, I run the water at each location until I see pink then stop.
It is so easy, and it takes about 1-2 hrs to winterize the boat. We never put antifreeze into the tank, and we never run it into the water heater.
I disconnected the hose at engine/head seacock and connect that hose to a section of hose of similar diameter using an elbow connector and hose clamps. I then put the end of the hose into a bucket filled with anti-freeze. Started the engine and ran it until I saw pink coming out of the exhaust.
Removed the hose connection and reconnected to raw water intake hose back onto the seacock. (The bucket was needed because this hose was too large to fit into anti-freeze bottles).
Once I have bypassed the water heater and emptied it, is there any issue running the engine? I ask this because I understand the engine coolant or heat exchanger heats the water in the water heater. I don't want to burn something out with an empty water heater. I also expect we should assure the 120 water heater breaker remains off while the water heater is empty.
My name is John Kin and I am new to the forum. We have an IP 45 (Elsie Mae) and I want to winterize her this week instead of paying the yard to do so. Our friends have an IP and mentioned that they were able to get a diagram off this forum that shows how to bypass the hot water heat exchanger. Does that ring a bell? If so could you direct us to this information? It would much appreciated.
The idea is to simply pull the water inflow hose off the water heater then pull the water outflow off and connect these together. That now means your water will bypass the water heater which saves you from filling it with antifreeze. Then once you do that, you should drain the water out of the water heater.
I used the Google search menu link under photos and found these photos.
Thank you for the information. The supply and discharge lines are close together so this procedure will be simple. My friend mentioned a diagram and I thought maybe things are more complicated than I imagined. I have been looking around the the IPYOA site and see a wealth of information.
Thank you John, yes, there is a ton of information shared in this website buy all the IP owners. We all love to help each other out. Make sure you click on the Facebook IPYOA group above in the menu and join that as well. Very active because many simply use their phones to post and ask questions.