Washdown pump & scupper help

[bigeasy1]

A couple of questions, for anyone with a washdown on a 23 with floor scuppers.
I have a Shurflo wash down that I'd like to install on my Tsunami,and would appreciate any advice,as to where i should install the pump and seacock.
My thoughts are either in the bilge area in front of the engine (it's a 350 I/O),or amidships forward of the fuel tank.

It's only a 52 gallon tank,so i have plenty of room forward,of the tank compartment.The hull bottom forward of the tank, is accessible,as i cut out the rotted bottom of the compartment that runs front to the cuddy.
I plan on leaving it accessible by having the bottom floor of that forward storage hatch removable.

Also wondering if the water will drain out the floor scuppers easily when trolling,or are they as much of a nuisance,as i hear about.

I'm thinking about maybe putting in some through the transom scuppers,while i have the back panel off,making the transom accessible.
I was thinking of going horizontally with a thru hull fitting just above the thru deck scupper,and out to the transom to a pair of rabud ping pong ball scuppers.
The problem,may be that i won't be able to have them above the waterline,it looks very close,and i can't really tell where the waterline will actually end up.

Here's a few pictures showing the engine compartment.and forward hatch areas where i could put the pump,and the last picture, is where i could run the new scuppers out to the transom.
I have the back cap and rear panel off so now would be the time to do it.

Any thoughts,or comments would be appreciated.


Engine compartment,& inside of transom with top cap and inner panel removed



Engine compartment.



Compartment forward of fuel tank,shown with the floor out



Same compartment,with the floor in,and looking towards the stern.




This is where i was thinking of putting in new horizontal scuppers.

[seabob4]

John,
First and foremost, excellent install! Very well done! O.K., there's your pat on the back. The key to installing a washdown system is accessibility to both the pump and the intake. If your engine box allows you freedom of movement both fore and aft of the motor, then install your pickup forward of the motor, and mount your pump to the transom, and plumb from there. As far as your cockpit scuppers, yes, those recesses you show in that one pic are designed for that. The key here will be, as you stated, the waterline.

If you would like, I can set you up with a complete washdown system for dirt cheap, starting with the latest Shur-flo Pro-Blaster pump and all the fittings, hoses, t/hull, and whatever else.

But I will tell you, great engine install! Bravo 1 or 3?

[bigeasy1]

Seabob,
Thanks for the kind words and help with my questions.The install actually looks better in person, than it does in the Pictures.I had the camera at the wrong setting.

Well,i wish it was a Bravo 1 or 3,but i had to settle for an alpha,the budget was getting a bit thin,and i got a chance to pick up the engine and Drive from a friend for cheap.Both are in extremely great shape with only 400 hrs on them.I figure it leaves me some money to spend on the radar for the new tower i just got.

I tend to be a bit fussy with the wiring,and mechanicals,but now, going on a year and a half,with all new transom and rotted core replacements,i just want to get this thing in the water.

Thanks for the offer on the pump,but guess what my early fathers day gift was,a nice new shurflo washdown system.
Again,Thanks for the help, and pat on the back,it's appreciated.

[seabob4]

John,
No problem. Happy Fathers Day! The reason I thought you might have a Bravo drive on there was seeing that Edelbrock sticker on the carb. I figured you might have upped the horsepower to 350 MAG levels (300HP), so you might have wanted to swing a bigger prop. But an inexpensive Alpha will do just fine. In case you ever want to go the Bravo route, Doug Russell Marine up in Mass. usually has some pretty good prices on quality rebuilds.

Have a great rest of the weekend!

[Capt Chuck]

any advice,as to where i should install the pump and seacock. My thoughts are either in the bilge area in front of the engine,or amidships forward of the fuel tank.

Based on your pictures, I would have concerns installing a seacock in the engine compartment or the forward deck hold.

1.)Both of those areas require opening and removal steps to quickly close the seacock if necessary. If the forward hold had contents the degree of difficulty increases. Wiring & hose connections appear to be limited.
2.)The normal washdown pickup needs to be as far aft as possible thus giving you full flow of water either at rest or underway.
3.) You need to have the pump and the intake in close proximaty to maintain water pressure.
4.)Also the pump needs to be mounted close to the intake (pump head down if possible) avoiding possible air locks.

Therefore, I would mount the pump to the transom just above your engine vent tubes either port or Stbd side. Install the seacock & water pickup below the pump ensuring you have a access panel/hatch at the transon for quick access to the seacock, repair and replacing the pump or connections & wash down hose storage. I will give you a couple of pics as sugestions

Water Intake installed aft inside the stringer away from trailer skids:



Easy access to the Seacock thru a transom panel:



Washdown pump is mounted to the inside transom with pump head close to seacock. Both the washdown & baitwell pumps utilize the same seacock.



The washdown hose has a fast connect / disconnect port




BTW: I like the idea of Cris-Crossing the scupper lines avoiding the wet feet issues.

[hermco]

WTF? Is the recession hitting you so bad you have to shoot pics in black and white?

[Capt Chuck]

WTF? pics in black and white?

Camera made by Obama

[hermco]

I heard the McSame joke yesterday.

[bigeasy1]

Capt.Chuck, Thanks for the info and pics.
For some strange reason,the first place my eyes went,was to your avatar,damm,I'm glad that picture's in color.
President Obama? "god forbid"

[abl1111]

This is where I installed my raw water and washdown/livewell thru hulls ( aft is washdown ).

The ParMax 4 pump installed later is mounted to the transom and easily accessable. The quick-attach hose attachment is mounted on the 'aft wall', further from the stern cleat then someone else's picture to avoid any tangles with coiled hose I use. I also mounted an exterior, water-proof on/off switch for the washdown power.

A few years later, I added a Shurflo 800 livewell pump directly to the thru hull livewell valve and that also feeds raw water to the ParMax4 washdown. All works great ! The power to that is run to the helm.

Also, I like where my blower is - see top left in pix. It's out of the way.

Note: I converted my Tsunmai from a twin I/O to a single, so I purposely left extra room when I closed up the floor.

I smiled when I saw your pix 'cause I been there done that . Just remember the beer !