I too have changed many of my ells to tees. One nice thing to do is have a section of hose with a garden hose connector just long enough to reach above the water line (~2') and a 3/8th dowel about 1' longer than the hose. This way when you use the dowel as a ram rod you don't have to worry about flooding into the boat. Old washing machine hoses are great for this.
My water heater is close to the engine seawater intake so something else I like to do is a engine flush by connecting the water heater drain to the engine seawater suction. Both have garden hose fittings so this is perfect for those old water heater hoses. With the engine running I can open the water heater drain so freshwater charges into the engine suction. I can then shut the seacock. After a minute or so I close the water heater drain and then promptly shutdown the engine. The engine has now just been flushed with fresh water. Barnacles or other bio fowling are less likely to grow and the corrosion from saltwater should be reduced. You can also rig emergency dewatering systems. I did this with the through hull where my deck wash pump draws suction. https://drive.google.com/file/d/0B8pEh5lnvP1yYURDZGRKWWhpdzA/view?usp=drivesdk My through hulls are Marlon so finding all the plastic (fiberglass reinforced polyethylene) fittings was a trick. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Mar 10, 2018 8:26 PM, "Chuck S via CnC-List" <[email protected]> wrote: I took a tip from a Don Casey book and changed my intake ell to a tee. That let's me do a few things. I can rig up a hose and run the engine while on stands and that let's me test run the engine and transmission before the travellift pickup. I also can winterize easily in or out of the water. I can also check the intake in the water by closing the seacock, pulling a plug and opening the seacock. If water gushes in, it's clear. If not, I can stick a long wooden spoon handle thru it to clear it. Never had to do that, but it's nice to have that option. Casey recommends changing all thruhull ells to tees for this reason. On March 10, 2018 at 3:20 PM "Dennis C. via CnC-List" <[email protected]> wrote: Launched Touche' after haul out few years ago. Same thing. No water from exhaust. Assigned slip was only 100 feet or so from Travelift bay. Got it into slip quickly and shut engine down. Intake valve was open. Strainer was clear. More investigation discovered blockage in the intake thru hull. Had to clear it by removing hose from inlet valve and back flushing with dock water pressure. Never saw what the blockage was. Could have been a mud dauber nest. I asked the contractor if they ever blocked the thru hulls for any reason. Said never. Now I check each thru hull before launch. Dennis C. Touche' 35-1 #83 Mandeville, LA On Sat, Mar 10, 2018 at 1:55 PM, robert via CnC-List <[email protected]> wrote: > I estimate the time TW was launched to the time we got aboard (I boarded > with the contractor) maybe 25 minutes.....so if someone can do the > calculation with a 1" hole with water being forced in, that is how much > water entered the boat. > > I am surprised that this wasn't detected on launch. Our boats are on > cradles that get lowered into the water on a marine railway.....the yard > staff usually submerge the hull until all thru hulls are underway but not > enough for the boat to move on the cradle....then someone goes below (owner > in my case,yard staff or contractor) and checks everything out, > specifically the thru hulls to ensure something like this does not happen. > If there is a problem detected, they can pull the boat without lining it up > on the cradle. > > Never happened in this case! > > One year when we were launching AZURA, the boat was submerged but not yet > floating off the cradle.....that's when I start the engine and check the > thru hulls....when I come back up, yard staff tell me to stop the > engine....no water coming out...boat hauled back out...check thru hull > intake for blockage....all clear...in-take hose is transparent and looks > clear.....back in the water....start engine....no water...shut it down. > Yard manager getting frustrated with me....start engine third time, no > water.....take a hard look into the engine compartment....raw water > strainer still has antifreeze in it....hmmm, think...reached in and tighten > the two wing nuts on the cap of the raw water strainer.....it was sucking > in air and not water. I didn't tighten it in the Fall when I drained it > and filled with antifreeze. > > Rob Abbott > AZURA > C&C 32 -84 > Halifax, N.S. > _______________________________________________ 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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