Most boat bilge pumps are automatic, meaning they will turn on when they sense enough water in the bilge (hull of the boat where the engine lives). Since some boats have the bilge tied directly to the battery, its important you dont keep the bilge running all the time. for 2.0 feet of submergence substitute 2.0 for the 1.0 and get; For comparison note that a 0.5 inch garden hose turns out 2.5 to 5.0 gpm. How embarrassing.(c; Larryanyone who says they never forgot, is a liar! If your boat has a VHF radio call for help, if not, use your phone to either get a local boat towing service or the coast guard if youre out at sea. All good and informative responses. Wonder if we'll need>an output to fire off the 406Mhz EPIRB beacon on larger boats? The Boat Lift Boss is an all weather motor that is completely covered to keep it safe in the elements. If youre not confident how many drain plugs your boat has, check the owners manual or contact your local boat dealership. The AquaThruster by Weeders Digest is the most effective tool to help protect, clean & maintain your shoreline & beach. Larry, the larger bilge pump is a fine idea but don't let it give you too much, On Mon, 25 Jan 1999 18:59:36 GMT, Reinhard Sprenger, On Mon, 25 Jan 1999 19:05:51 -0500, "Charles T. Low", >"You gotta be a special kind of stupid to forget to put the drain plug, On Tue, 26 Jan 1999 22:31:52 -0500, Michael Kallelis, I have seen many great posts about how much water comes in without a drain. Welcome to our site! Discussion in 'General Discussion' started by davismwfl, May 21, 2017. Drain plugs keep the water on the outside of the boat from going into the boat and sinking it. Most boats come with a bilge pumps, but there are some exceptions. Upon analysis, your answer, despite being delightfully twisted, would appearto be the most accurate. A boat is pretty much a big bucket, and it can collect rain water, especially if it rains hard enough, and even more true if you dont keep a cover on your boat. My 1981 Sundancer 26' also has both switches on the dashhowever, as Ifound out last weekend after filling up the water tank, they are quiteautomatic and successfully get rid of the 30+ gallons of water that waspromptly delivered to my bilge. Assuming no "entrancelosses," the water will squirt into the boat with just enough energy sothat the plume of water will just reach the height of the waterline. > How would one go about figuring out how much water flows into a boat. No boating for you today.Forget to put them in before launching? So the answer to your question is that the pump sizeshould be in the range of 2000 gph to 5000 gph for a 1.0 inch diameterdrain plug hole that would be 2 feet below water. No, it's because most people can swim without a boat much better than they can fly without an airplane. If youre not sure if your boat comes with a drain plug, contact the manufacturer or dealer where you bought your boat. Thisimplies it can lift 2000 gallons as high as 5 feet every hour. Will a Boat Sink Without the Drain Plug? You could get cited! SAVES ONE LESS HASSLE AT THE BOAT RAMP! Forgetting to put your drain plug in before putting your boat in the water will cause it to sink. I owned a cuddy before, and found that for the typeof boating I do, the cabin space was wasted. Hook your garden hose to the open hole while it's in the driveway.Turn it on full force. Mine (1986, now for sale) has a manual switch on the dash for each pump--but inthe "off" position, the pumps are on auto. Same speed as it would be going if you dropped it from that height. The "10" in front of and behind the name in the return address is foranti-spam protection.Remove the "10" 's to reply. The Versiplug drains your hull completely and makes flushing a breeze! -- -- Marcus. (opens in new window), randell.seyfert@captainsmarine.com,kyle.c@captainsmarine.com,laura.p@captainsmarine.com, Check out the Captain's Marine YouTube channel! Also the fittings typically sold for boats never seento me to be designed for optimum hydraulics. But you must remember to put in your drain plug before putting the boat in the water. Bilge pumps are designed to remove water from the bilge, which is the lowest part of the boat. Of course, I changed the hose and thru-hull fitting to the appropriatesize for the new pump. Keep in mind that "A BOAT IS DESIGNED TO BE IN THE WATER, NOT FULL OF WATER", (You must log in or sign up to reply here.). If a winter storm were to destroy the shrink wrap and soak the boat with water at least the water would escape the boat thru the drain plug. The opposite can happen on land, where you leave the drain plug in but dont keep the boat covered, and it floods with rain water. In order to assist you if you get stopped at an AIS check station, your drain plugs will be removed and your boat will be clean, dry and ready for inspection! 2. So, for 1.0 foot of submergence flow would be; Q = 0.61 * 0.00545 * SQRT (2 * 32.2 * 1.0) = 0.0267 cfs = 12 US gpm = 720gph. ), -----------== Posted via Newsfeeds.Com, Uncensored Usenet News ==---------- http://www.newsfeeds.com/ The Largest Usenet Servers in the World!-----------== Over 66,000 Groups, Plus a Dedicated Binaries Server ==----------. A = 0.00545sq. Smaller boats, like Jon boats, may not have a bilge pump. Some of the biggest boating disaster stories you'll hear involve drain plugs, or the lack there of, I should say.That's just one of the reasons when you pull into the Captains Marine parking lot, you'll see this sign. ?The axle only bent a little from the gunwale-deep load of rainwater,frogs, escaped fishin' equipment, one left sneaker - kid's size 8, andthe 3-month-old six Striped Bass in the big Igloo Cooler he forgotabout the next morning before goin' back to work at Massive Truckingand Storage on a 3-month, long haul, to Vancouver where the Peterbuiltblew a tire in Tulsa and needed the #4, bent, piston rod replaced inSeattle, a 9-day layover waitin for parts. Please take a moment to donate now. Of course, it'd have to have a>fancy electronic display mounted on a 2-bolt gimbal mounting bracket>made outa black anodized aluminum.It'd have an LCD display to show>how deep the water's already gittin' while the alarm is blastin' away>and the big light on it's blinkin. Almost all larger boats will come with a drain plug (or multiple). Have fun at your extended check out at AIS stations.Decide to skip the AIS station and drive on past? Never Forget Your Plug with Versiplug Drain Valves. This is because all hydraulic losses from flow through theintake strainer, friction loss in the hose, loss in the fittings and eventhe velocity head in the outlet fitting must all be converted to units offeet and added to the vertical lift from the bilge to the highest part ofthe hose. The drain plug must be in the boat at all times when the boat is in the water. Always do a pre-launch checklist at the ramp. Overloading the boat beyond its weight and carrying capacity. Hello most expensive bathtub of all time from a rain storm.Forget to clean, drain and dry after a day of boating? You got it for free and itmay be worth only what you paid for it. Of course, it'd have to have afancy electronic display mounted on a 2-bolt gimbal mounting bracketmade outa black anodized aluminum.It'd have an LCD display to showhow deep the water's already gittin' while the alarm is blastin' awayand the big light on it's blinkin. drain the boat? However, there are some manual bilge pumps available and often comes with the automatic bilge pumps, especially on larger (18ft or greater) boats. ), PS I've just jinxed myself, haven't I? Boat Lift Buddy installs in minutes. It'd have an output to fire the>DSC-equipped VHF radio's Channel 70 Emergency alarm, noting our>current position from the radio's GPS NMEA-0183 data stream. (about the drain plug, not the other), Charles T. Low, author of "Boat Docking"