The thruhulls are above water at rest but must be under a few inches of water when sailing or when motoring at speed. I wouldn't be too concerned about the drains, but might add a shutoff valve to the engine exhaust? I don't have one, but I've seen it mentioned in most books for offshore safety. It protects the engine from getting seawater driven into the engine possible under very rare circumstances.
The exhaust hose is meant to have a large loop high up inside the lazarette by design, so the engine has to build up exhaust pressure to lift the water up inside the muffler, and blow it out the hose. Chuck Resolute 1990 C&C 34R Broad Creek, Magothy River, Md ----- Original Message ----- From: "John Pennie via CnC-List" <cnc-list@cnc-list.com> To: cnc-list@cnc-list.com Cc: "John Pennie" <j...@svpaws.net> Sent: Sunday, June 14, 2015 2:57:31 PM Subject: Re: Stus-List 34+ transom thru-hulls We had this issue on both our 34+ and 51. Yes, the original design was without seacocks as they are just above the waterline and hide neatly under the transom skirt. Heeled and under power is a different story and they will be under water. it came up on a few surveys and rightfully so. We never did add seacocks to either boat but it was always an area we kept an eye on. Insurance carriers today may not be as forgiving. BTW - the 34+ is an incredible boat. We raced ours on Wednesday nights, weekended on her and ultimately took her offshore to the caribbean. Just my $.02 John On Jun 14, 2015, at 2:37 PM, Kevin Driscoll via CnC-List < cnc-list@cnc-list.com > wrote: Assuming your boat sits on the lines it was designed for, those through hulls should be just above the waterline and I'd typical for the Rob Ball designs of late 80s early 90s. It will only be a couple of inches above WL but they were very smartly designed to remain so (at anchor) and they keep the transom uncluttered and clean. I consider it a one of the more refined design moves that separates earlier cncs from the Ball era, my 2 cents. Sounds like PO could have raised boot and bottom paint, but hard to tell w/o a picture. The 34+ seems like a great boat and I hope to have one in the future... On Sun, Jun 14, 2015, 10:45 AM Patrick Davin via CnC-List < cnc-list@cnc-list.com > wrote: <blockquote> [Resending to list with your image removed since it exceeded msg size limits] Oh, yeah those look below waterline, I would want seacocks on them. I was thinking your transom extended further back + up, but those are below the bootstripe and close to the rudder. You could also combine the two scuppers into one outlet and then plug or remove a thruhull so you have one fewer. I assume those are deck scuppers and not cockpit scuppers. That's how my deck scuppers are setup, and they don't need rapid self bailing like the cockpit does. On Sun, Jun 14, 2015 at 10:22 AM, David Pulaski < davepula...@hotmail.com > wrote: <blockquote> I said "appear" to be below the waterline because the boat's not in the water, isn't going in the water anytime soon, and I've never actually seen one of these in the water :) All four thru-hulls are under the transom counter and below the boot stripe as well as below the waterline as defined by the existing bottom paint, so I have to assume they are submerged with the boat floating level. Given their location in the bowels of the stern lazarettes, I know accessing them is a pain but I'm paranoid enough that I'd close them when I'm leaving the boat on her mooring and not returning for a span of days at a time. On second though, I'd have to leave the two small ones open because those are scuppers, so no sense in valves on them at all. Here's a pic of the two port side thru hulls, big one is the exhaust. 2 more on the stbd side in the same configuration. <blockquote> -Dave 1990 C&C 34+ "Faith Anne" </blockquote> _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com </blockquote> _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com </blockquote> _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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