In the past few years I've used compressed air to evacuate all the water in my fresh water system which eliminates the need for water safe antifreeze and surprisingly eliminated any smells when refilling the system including the sulfur smell from the hot water system.
Do you have the manual for your unit?
Post up a picture of the data plate on top of your unit and I bet someone will find one for you.
Most guides have a pretty good trouble shooting guide in the back.
It's been a while for an update. I decided to give some love to the canvas to extend it's life a little longer. It's been removed and resewn. I started to have seams pull apart, zippers break, and hook & loop disintegrate so what a better time than fall/winter to have this done. But not...
Hitting submerged stuff....logs, trees, etc, at night the channel markers can come out of nowhere and other boaters especially bass boats at night flying across the water with their docking lights on and you know they can see you at all.
BTW that's a pretty cool knife linked above. I had to...
Being in TN on a river I defiantly boat in different conditions than you but I gave up on my spotlight and now use a LED flashlight for my river navigation at night.
Much better light, better beam, quicker to sweep for navigation markers using my arm.
There were a hand full littering up the TN river around Chattanooga then some company must of got the contract to recover them all. There was a few videos on the local facebook page of some of the recoveries. I'm hoping they are going after the owners of these boats for the cost of receovery.
I use something like this.
I thought the same. The hot water tank did not develop that sulfur smell as before. I still use a bit of pink in the toilet, drains and sump box.
I'm fortunate enough to be able to boat all year long so I just heat the engine area.
Could save a little bit and buy a small compressor from HF to blow out your fresh water system.
Been doing this that last 2 years and it's been great. I spent less money on a small compressor then 4 gal of antifreeze during the days of supply chain issues.
If you are going to go anywhere, come on down to Chattanooga. You can get away with minimum winterization and then heat your engine and interior. I do winterize the fresh water system and waste tank but heat everything else. I love getting out on the water on those sunny cold days.