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Winterizing AC

T

teltcity_boater

New member
"Im going to winterize my boat

"Im going to winterize my boat for te first time this year. A friend is coming over to help that has done it for years. My question is that it has AC, and what I need to do to it to winterize the AC unit?"
 
"the only think you need to wo

"the only think you need to worry about is the cooling water. What i do is use a 5 gallon bucket with a small bilge pump in it. Put a gallon of winterizing anti freeze in it and put the hose up to the water outflow fitting on the side of the boat and pump the antifreeze in backwards. Should go through the condensor coil, the pump, the filter and come out the water intake sea cock. The idea is just to displace the water with antifreeze. Sometimes I gingerly blow air through or disassemble the lines (with the sea cock closed) and just empty the water out. Depends on how easy things are to get to."
 
"We do our similar to MistaHay

"We do our similar to MistaHays but 'backwards'. we use a 5 gallon bucket with a hose barb/flange bolted to the bottom. Use hose adapters to get down to the right size (think mine's 5/8"). Connect hose to strainer and fill with a gallon of pink stuff. Run A/C until pink stuff runs out thru-hull. Only 'benefit' to doing it this way is you get to fill the cooling passages internal to the pump. If your pump doesn't have them, no difference. Also good time to clean the air inlet filter, too."
 
I back blast with compressed a

I back blast with compressed air. I put air chuck with a rag around it against the discharge port and slow blow until I hear a clean discharge of air out the intake. Al W.
 
Makomark has a good point on t

Makomark has a good point on the pump that i will reiterate. pumping through the "correct" direction gets more juice through the internal pump passages. (I've broken a pump before) Learning something.
 
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