Join Date: Oct 2009
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Re: Clog in sea water cooling system
Follow your hoses. As FSMike said, make sure your seacock is open. If it is, probably the next stop is a sea strainer. Close the seacock and open the strainer to make sure it is not clogged up.
If the seacock is open and the strainer is clear, make sure there are no kinks in any of the hoses.
If the strainer looks good, slightly open the seacock to see if seawater comes thru. Depending on water coming in or not coming in, will tell you if the blockage is before the strainer or after.
What kind of boat do you have? Any chance that the bottom is so dirty that the water intake is clogged?
Is this a new problem for an old boat that you have owned for a while or did you just get the boat?