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Have not done it myself. I would have opened up, let the cool aid drain in a bucket, clean the cooler, locked it abd boltet it up with new seals, and filled cool aif. 
 

i think there are lids on both sides of the cooler. 
 

I had done that before i checked the impeller to see if that fixed it. 
 

alternative is acid cleaning, which most likely is easier and more effective since you will treat the entire system 

mechanical fixing tends to lead to new challanges like broken bolts or bad sealings… ;-). Murphy’s law is higly present on boats….
So I would have looked into the acid path first, most likely using this

https://seatronic.no/systemrens-1-liter/

Have not done it myself. I would have opened up, let the cool aid drain in a bucket, clean the cooler, locked it abd boltet it up with new seals, and filled cool aif. 
 

i think there are lids on both sides of the cooler. 
 

I had done that before i checked the impeller to see if that fixed it. 
 

alternative is acid cleaning, which most likely is easier and more effective since you will treat the entire system 

mechanical fixing tends to lead to new challanges like broken bolts or bad sealings… ;-). Murphy’s law is higly present on boats….
So I would have looked into the acid path first

Have not done it myself. I would have opened up, let the cool aid drain in a bucket, clean the cooler, locked it abd boltet it up. 
 

i think there are lids on both sides. 
 

done that before i checked the impeller to see if that fixed it. 
 

alternative is acid cleaning, which most likely is easier and more effective since you will treat the entire system 

mechanical fixing tends to lead to new challanges like broken bolts or bad sealings… ;-). Murphy’s law is higly present on boats….
 

Have not done it myself. I would have opened up, let the cool aid drain in a bucket, clean the cooler, locked it abd boltet it up. 
 

i think there are lids on both sides. 
 

done that before i checked the impeller to see if that fixed it. 
 

alternative is acid cleaning, which most likely is easier and more effective since you will treat the entire system 

mechanical fixing tends to lead to new challanges liek broken bolts or bad sealings… ;-)