I pump my tanks dry, then use a shop-vac to blow into the hotwater tank drain. The drain is branched off of the cold water inlet to the heater so this perfectly pressurizes the hot and cold system. I systematically open each faucet on hot and cold until all the water is gone. Then I go to the aforementioned tanks which have been pumped dry and add about 1/2 gallon to each tank, then pump each tank down while cycling through each fixture. I then re-add a 1/2 gallon to each tank and pump again, cycling through each fixture.
http://www.pbase.com/mainecruising/water_system_winterizing Be careful, even just a little dilution can allow freezing. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Sun, Nov 18, 2018, 7:11 PM Matthew Schlanger via CnC-List < cnc-list@cnc-list.com> wrote: > I agree for the tank. Just letting it drain should be fine. It’s the > running antifreeze through the rest of the system that’s throwing me. Today > I did blast the tank with a compressor and more water came out so I like > doing that. Just letting it drain wasn’t 100 percent, but likely good > enough. > > I traced the hosing some. Too many disappear below the hot water tank to > have a full picture. A saw a puddle of antifreeze there but could get to > it. It makes sense to connect the input and outputs of the tank together > but it didn’t work. I think the water pressure pump feeds a T that then > runs to the cold on the galley sink. I think there is another T there which > probably feeds the hand shower in the head. The hot water does the same > thing. So connecting tank out to the T at the input of the tank should pump > water, antifreeze, to both endpoints. But it’s not happening. > > For this season, given my failure, I am hoping just draining and pulling > antifreeze through the hand and foot pumped lines will be enough. So far > can’t figure it out. > > Matthew > The Office > C&C 35 Mk III > > Sent from my iPhone > > On Nov 18, 2018, at 3:15 PM, dwight veinot via CnC-List < > cnc-list@cnc-list.com> wrote: > > I leave mine drained and dry with hoses disconnected and i don’t blow with > compressed. 15 years no problems same pump and hw tank. I like simple > > On Sun, Nov 18, 2018 at 12:39 PM Matthew Schlanger via CnC-List < > cnc-list@cnc-list.com> wrote: > >> I am trying to winterize my water system myself this year. I have a C& 35 >> mk3. I took the intake and output hoses off of the hot water tank, the >> lower connection was a T, I think that was the cold water input. I attached >> the hot to the cold water T, and let the water drain out of the tank. I >> plan to go back to today to blast it with air from a compressor to make >> sure. It takes a lot of energy and water to clear the pink antifreeze when >> spring comes an I have heard this is a better way to go - you are just >> never sure it’s all clear and don’t want to take any more antifreeze >> showers. I put antifreeze in the tank and hand pumped to through the >> passive lines but trying to use the pressure pump to fill the active lines, >> it comes out the bilge and never through the pressurized faucets. Either I >> busted a line or something weird is going on I have not figured it out yet. >> I will try to trace the hoses and see what’s going on. Disconnecting the in >> and out and tying them together was suggested by one of the boat mechanics >> at the boatyard I am using this year, but that doesn’t mean he’s right. >> >> Any insight would be appreciated. >> >> Thanks >> >> Matthew Schlanger >> The Office >> C&C 35 mk III >> South Nyack, NY >> _______________________________________________ >> >> 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 >> >> -- > Sent from Gmail Mobile > > _______________________________________________ > > 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 > > _______________________________________________ > > 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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