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Author Topic:   saltwater washdown...How to install/create
LUV2FISH posted 03-27-2001 10:40 AM ET (US)   Profile for LUV2FISH   Send Email to LUV2FISH  
Hey guys, I have a 18 outrage and want some ideas for installing a salt water washdown system. I have seen some clam shell type through hulls with slots for screening and have read about checkvalves but don't know where to put one. Would an inline see-through filter with removable cover be a good idea? I'm looking at sureflow blaster or something like it with a automatic off/on pressure switch. Would a good place to come through the hull be near the drain plug in the bilge area? Starting from scratch so any ideas would be appreciated!
Whalerdan posted 03-27-2001 11:10 AM ET (US)     Profile for Whalerdan  Send Email to Whalerdan     
I would just get a high flow bilge pump with a long hose and pull the drain plug and let some wate in when I wanted to wash down. Then, when your done washing dump it over the side.
reelescape1 posted 03-27-2001 11:31 AM ET (US)     Profile for reelescape1  Send Email to reelescape1     
I have a mag drive bait pump mounted starboard side transom on my 22'. It has an extra fitting (pick-up) for the washdown. The blaster pump with internal pressure switch is mounted starboard side inside the boat. The blaster pump series has a screw on type strainer that is easily removed and cleaned even while in the water, its clear plastic and does fine untill it freezes!!!
LUV2FISH posted 03-27-2001 03:55 PM ET (US)     Profile for LUV2FISH  Send Email to LUV2FISH     
Thanks for the input whalerdan but I need a more permanent installation. I go offshore fishing and everytime you get a bid mahi floppin around with a gaf hole in him it makes a mess. So, hopefully I will be washingdown 10 or more times a trip depending on how many fish we catch. Reelscape, is that blaster picking up from the transom via a thru-hull or just a pipe over the back? Also, with a blaster, although it is self-priming, do I need a check valve and if so where does it go? Any other suggestions on the thru-hull location would be appreciated.
reelescape1 posted 03-27-2001 09:31 PM ET (US)     Profile for reelescape1  Send Email to reelescape1     
My washdown pick-up is an aux. fitting on the mag drive bait pump mounted on the transom. The pump comes with this fitting built in. I run 3/4" reinforced hose up to a 90 fitting at the top of the transom then on to the washdown pumps strainer. I bought one of those 25' blue coiled hoses (polyurethane $45) and am very pleased. It just lays on the floor as I refuse to give them the $100 they want for the fancy holders!
reelescape1 posted 03-27-2001 09:35 PM ET (US)     Profile for reelescape1  Send Email to reelescape1     
The check valve is not needed and if I were you I would NOT run a through dont need to! The pump probably wont be used while running, so a simple hose over the transom will work while not cutting up your boat. I might be able to send a pic of mine if it would help.....
tyler posted 03-28-2001 06:20 AM ET (US)     Profile for tyler  Send Email to tyler     
Reelscape, I am also iinterested in a salt water wash down. I would appreciate some pic's of your set up. Thanks.
bigz posted 03-28-2001 10:48 AM ET (US)     Profile for bigz    
If you want a permanent installation --
you'll need to determine your hull thickness at the point where you intend to mount the intake. This will determine if you can use the one piece pick up strainer with through hull pipe attached or will have to use a straight through hull connection and then mount a strainer over it.

The next item needed is a ball valve attached to the inside of the through hull pipe --- a hose barb fitting attached to the valve a hose section attached attached to a small sea water filter that attached by hose to your pump, the pump attached to either a faucet or in this case just a raw water wash down outlet.

That's the overview of the system. The pump has to be securely mounted as does the filter. Wire the pump through a switch close to where the raw water wash down is located -- make sure you fuse the pump with an adequate size fuse where it connects to the battery buss bar positive and of course attach negative to the negative side of the distribution buss bar, on the Outrage should be located in the console.

There you have it -- simple -- heh heh just make sure you do a good job sealing the through hull fittings --- Tom

Ferdinando posted 03-28-2001 07:31 PM ET (US)     Profile for Ferdinando  Send Email to Ferdinando     

I have a Montauk in which I wanted to install a raw water washdown without drilling any holes, however I did want a
permanent set up so the hose over the side
was out of the question. Here's what I did.

I installed a blaster pump inside my console
with the hose outlet coming out right next to the fire extinguisher. I ran a 3/4" clear hose down the middle channel all the way to the back of the boat and thru one
scupper. At the scupper I used an L fitting to make the hose go straight down to the bottom frame of my out board and just tied
that loose end with one of those plastic ties. The hose is always in the water and
she pumps perfectly with no holes in the hull.

In addition I bought a plastic Y garden fitting with two outlets. I leave one fitting connected to the raw water and the other to a 3 foot section of hose. What I do is take a 3 or 5 gal water jug with me and
when I want to shower I just stick that short pc of hose into the jug close the valve to the raw water and pump fresh water
thru the same system. The whole enchilada
has been on my boat for over a yr and works perfectly. I don't see many Montauks with a raw and fresh water washdowns.


LUV2FISH posted 03-28-2001 08:52 PM ET (US)     Profile for LUV2FISH  Send Email to LUV2FISH     
Fred, great idea! Thanks to everyone for the replies! I remember I once had a live well system that had a pipe attached to the transom, the end of which was cut at a angle and hung about 1 inch below the hull. It worked great at rest and underway. The angled cut would pick up the water at speed! Fred, to save my foam...I think I'll go with your set-up with the PVC pipe variation so I can wash down while running to catch up with the school of tunies or while at rest! Running the hose along with the cables/wires will surely help hide it but I'm not sure about the scupper...I think I'll go over the top at the motor. I plan on using the scuppers as I will be making this boat self-bailing.
JAC posted 04-03-2001 05:55 PM ET (US)     Profile for JAC  Send Email to JAC     
For those of you with a transom bracket, the wash down pump, enclosed in a spash proof box fits nicly inside a 5.5" bracket. This allows for a direct pickup line to the water and only one "L" fitting to come over the transom. Use of the coil type hose minimizes space inside the boat and makes for easy access when hosing down all those slippery mahi. Several of the popular pump systems come with a corrosion protective sealant, so a splash box and regular rinsing is all that is needed for transom mounted pump.

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