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SR Mariner Depth Meter Thru Hull Question

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MurphyPeoples
1st Mate

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USA
45 Posts

Initially Posted - 03/01/2010 : 07:29:37

I'm working on the SR Mariner Depth Meter that came on the C-25 I bought last year. Checking the thru hull - in the picture - I'm guessing that the opening for it is TRULY cut THROUGH the hull? I've got a dummy plug I could put in it's place - but I'm currently in the water and don't expect to do a haul out till 2011. Can anyone answer if these are cut through? If so I'll just leave it in place and connect the wiring up to check for function. I had hoped to inspect it... but it can wait if it's cut through. Thanks in advance.
Murphy

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OLarryR
Master Marine Consultant

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USA
3462 Posts

Response Posted - 03/01/2010 : 09:50:50

I am 90% sure it is a thru-hull. For some reason, I cannot recall - Must have lost the brain cell with that data point. My SR Mariner Depth finder was not working when I bought my boat. I installed a fishfinder and mounted the transducer on the inside of the hull with a glob of a toilet bowl wax ring matl. It has been working fine ever since that improvement which was over 4 years ago. If you troubleshoot and a fix is necessary, based on the cost of the fix, you may want to consider a fishfinder as well. The initial cost will set you back a bunch but the fishfinder may in your area provide more useful info in that it provides a sense of the water bed.

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GaryB
Master Marine Consultant

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USA
4304 Posts

Response Posted - 03/01/2010 : 18:46:45

It is a thru hull. You can pull the transducer and input the dummy plug while the boats in the water. I haven't done this myself but others on this forum have and report that you might get a gallon or two in the bilge at the most.

My boat has the same transducer and dummy plug. I've chosen not to rock the boat and will leave things as they are. I'm afraid with it having been in place since '89 that if I remove it I might never get it to completely seal again.

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rclift
Navigator

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USA
152 Posts

Response Posted - 03/16/2010 : 19:59:26

You can do either thru hull or cement to the inside of the boat. Mine works great and is siliconed in at the lowest point near the center line in the v-berth. My primary sailing grounds are on the Columbia River in waters less than 50 feet. In the few times that I was in deep water the meter seemed pretty accurate to 200ft. For me the fewer holes in the bottom of the boat the better. I have the original instruction page if you need a pdf.

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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.