When you rout the hose try to minimize low areas between the head and tank in which black water can sit in the hose. You will discover the precise volume involved when your joker valve leaks. Also, if you can choose, have the waste hose enter the tank at the boat’s centreline rather than at one side or the other. This will prevent a near-full tank from backfilling the hose when heeled and the inlet is submerged.
Windstar plays a cool trick on me when her tank is nearly full and the joker valve needs replacement- she partially pumps herself out! When heeled, and the head is on the low side, (same side as the inlet on the tank) the hose inlet gets submerged, the hose fills, then slowly leaks into the head via the leaky joker (!) valve. Tack And the head fills a bit further as the now elevated hose continues to empty itself. Tack again and the hose refills, repeating the process. The head fills - one hose load at a time with each tack - and enough if allowed that it too self empties -slopping into the head compartment. Clever! Another thought - the more hose you have, likely the more it will stink over time. The corrugated pvc type permeates after a few seasons. Have switched to the trident premium rubber type and so far so good. IMO In a perfect world the hose would be short, run downhill and enter the tank on the centreline. Dave Windstar 33-2, (New joker valve every spring henceforth and likely to build my own fibreglass holding tank this winter. ) Sent from my iPhone > On Aug 19, 2020, at 6:02 PM, Jennifer and Julian Norris <j...@bellaliant.net> > wrote: > > > Kevin, > > My boat has/had the same tanks as yours, all in aluminum, and all configured > as fresh water tanks which are plumbed to a manifold on the port side near > the pressure pump. The tank under the settee was removed by a previous owner > - I assume it sprung a leak. I plan to keep the vee berth tank as fresh > water, find a replacement tank for the settee for additional fresh water, and > convert the aft tank to a holding tank so that I end up with the same > configuration that you have. > > Currently waste water from the head is routed along the bulkhead behind the > head and into the wet locker. Instead of going through the bulkhead to the > cockpit locker as yours does, mine is routed to a through hull under the > sink. I was trying to decide whether I should go through the bulkhead > immediately behind the head or keep the original route to the hanging locker > then go through the bulkhead there to get to the cockpit locker - sounds like > option number two was the factory routing. If you are able to snap a picture > of where the waste line goes through the bulkhead in the hanging locker on > its way to the cockpit locker I would be grateful. I think the trick will be > to avoid the hot water heater and the fiberglass shelf near the hull, and > have the pipe come through in a location where it can make the necessary > bends to reach the top of the tank. Does you waste pipe pass over the top of > the hot water tank or between it and the hull? > > Thanks very much for replying to my post - the help from other C&C30-2 owners > is much appreciated! > > Julian > > On 8/19/2020 1:19 PM, Kevin Driscoll wrote: >> Julian, >> I have a plastic holding tank in that location with a deck fitting directly >> above set up from the factory that way I believe. Waste lines lead from the >> head, through the bottom of the adjacent wet locker, and just under the >> cockpit locker floor to the top of the holding tank, which is just aft of >> the 6gal hot water tank. Are you sure the aluminum tank is not a waste tank? >> My factory water tanks are under the vee berth and another under the >> starboard settee, both plastic. We are on our boat this weekend, so if you >> email a reminder I will try to get a photo for you. >> 30-2 Osprey, Gig Harbor >> >> >> >> >> On Wed, Aug 19, 2020 at 9:06 AM Julian Norris via CnC-List >> <cnc-list@cnc-list.com> wrote: >>> I’ve recently purchased a 1989 C&C30-2 which is not plumbed with a holding >>> tank. There is an aluminum fresh water tank beneath the starboard aft >>> locker that has an original manufactures label that calls it a waste tank. >>> My guess is that these boats came from the factory configured with this >>> tank plumbed as either a fresh water tank or a holding tank. I’d like to >>> repurpose my tank as a holding tank. Most of the connections seem >>> straightforward but I’m trying to decide on the best routing for the black >>> water pipe between the head and the tank. Does anybody have a C&C30-2 with >>> the aft tank setup from the factory as a holding tank? If so please provide >>> some details about how the hose is routed from the head, through the >>> bulkhead, to the tank. >>> >>> Thanks, >>> >>> Julian >>> >>> Sent from my iPhone >>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each and >>> every one is greatly appreciated. If you want to support the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray >>> >
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