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Re: GROCO K-type marine head question
KB: Swan did the same until we rebuilt the head. Until then, after you pump it out, close the ball valve behind the head on the right to close off the intake of water. If that doesn't work, water is backing in from the head's exhaust side. If the exhaust from the head is valve diverted overboard, turn off the through hull valve on the port side under the V-berth (behind the small door). That will prevent the back up. If the exhaust is diverted to the holding tank and it's backing up into the head, you would smell it. All this assumes your 34 is plumbed like Swan's.
Hope this helps.
Last edited by DaveMancini; 07-14-2019 at 07:10 PM.