When to winterize

2006 Sundance’s 290 at Smith lake in north Alabama. When should think about winterizing? Has heater in engine compartment. Should I only worry about head and potable water?
Dan

If water freezes then it needs to be removed. Pink antifreeze is a lost less costly than replacing things. My boat neighbour never winterized. After 7 years near him one spring he informed me he had to replace all his potable water lines. That was the year we had a week of below freezing in the 20ies.

Dan williams said:

2006 Sundance’s 290 at Smith lake in north Alabama. When should think about winterizing? Has heater in engine compartment. Should I only worry about head and potable water?
Dan

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I assume it’s staying in the water? And you have access to electricity? As long as the lake water does not freeze over, the only issue is air temperature. Plug the air scoops with spongy foam so the heat in the engine bay does not escape. I would drain the water tank and heater (and pump out holding tank). You can then pump pink RV antifreeze through the plumbing and drains (especially shower sump box. Or my preference, use compressed air and blow water out of all the lines. You’ll still need to antifreeze traps and shower box, but you’ll save time in the spring cleaning af out of the plumbing.

if you have aircon, don’t forget to drain water cooling line.

Thanks! That I CAN do. Last winterization was $800. Have had alarms since beginning of summer this year. Getting checked out now and hopefully can get some water time in soon.
Thanks again!
Dan