Deck wash kit

[Dignity]

Are any deck wash pumps made all or predominantly out of plastic yet? For all the ones I've installed, the amount of work they actually get before they rust out is horrendous.

Is it the outside or do the insides rust out. I remember a water tank pump I had required that it run at least once a week otherwise it would rust up solid?

[scottar]

Scottar, after a good night's sleep I have reread the shurflo pdf and it is interesting that the pump impeller must be below the waterline. I have an Allison Vision, it has a pod and duck boards and I was hoping to Install a pump on the duck board with the scoop through it, this places the impeller above the water line, was planning on something like this
http://www.sportsmansguide.com/produ...reads?a=707598
other issue I now realize is a second hole will be required for the waste discharge, how could I have forgotten that.

Maybe I just need to sell this one and buy another boat with all the bells and whistles.

That one won't self prime either. You could mount a small rule or similar on the transom on a stainless bracket with a pick up tube and simply run the hose up over the transom and into the boat with the outboard wiring / steering lines. Personally though I think you are better off with a proper through hull pick up, ball valve and then the necessary pumps / plumbing.

The drain for the bait tank can utilize the drain in the bottom by using a length of pipe of the right diameter to fit snugly in the drain hole like so
20160413_203307.jpg This eliminates the need for another hole and is cut to length to set the depth. The "T" on the end stops bait fish blocking all of the entry points and thus flooding the tank to the point of overflowing. This is assuming that there is a drain in the bottom of your tank and it is large enough to handle the flow requirements.

[scottar]

Is it the outside or do the insides rust out. I remember a water tank pump I had required that it run at least once a week otherwise it would rust up solid?

Both in the long run.

[Dignity]

That one won't self prime either. You could mount a small rule or similar on the transom on a stainless bracket with a pick up tube and simply run the hose up over the transom and into the boat with the outboard wiring / steering lines. Personally though I think you are better off with a proper through hull pick up, ball valve and then the necessary pumps / plumbing.

The drain for the bait tank can utilize the drain in the bottom by using a length of pipe of the right diameter to fit snugly in the drain hole like so
20160413_203307.jpg This eliminates the need for another hole and is cut to length to set the depth. The "T" on the end stops bait fish blocking all of the entry points and thus flooding the tank to the point of overflowing. This is assuming that there is a drain in the bottom of your tank and it is large enough to handle the flow requirements.

Yep, I'm almost convinced, buy another boat already set up but then I wonder if whoever set it up knew what they were doing, every post seems to raise another technical issue that needs to be resolved.

[scottar]

It's not difficult - just a little daunting to take the hole saws to your pride and joy if you are new to it - measure twice, drill once. Once you get into it half the enjoyment/ satisfaction is doing it yourself.

[Lovey80]

Is it the outside or do the insides rust out. I remember a water tank pump I had required that it run at least once a week otherwise it would rust up solid?

Usually the outsides but once they get rusty they don't last long after that.

[Dignity]

It's not difficult - just a little daunting to take the hole saws to your pride and joy if you are new to it - measure twice, drill once. Once you get into it half the enjoyment/ satisfaction is doing it yourself.

Been there done that and then wondered why I went down that path. Lets see if i got this right, thethe pump I posted (the one with the extra take off point)is, that for the deck was pump to work this one would need to be running whether I am using the live bait well or not, if that is the case then it shouldn't be too much of an issue. I do have hole in the transom I can use for the inlet pipe to go through as there is a slop stopper where a previous owner had replaced the failed hydraulic steering with a cable one, since replaced. It is the outlet for the live bait well that I need to make another hole. The Allison doesn't have the width in the transom to build a live well in it so in all likely hood be built from the floor up which means this outlet will be very low to the waterline and space is tight for everything in these conditions.

[scottar]

No - the second take off is on the input side prior to the impeller. It does need to be mounted below water line though. If you did this externally it would then mean two hoses up the back and through the transom. You could try plumbing the input for the deck wash into the output from the bait pump once it was through the transom and draw water through the bait pump but you would need a fitting at the tank entry that could shut off the line to prevent the deck wash from potentially sucking air. With the bait tank, I would simply have an outlet at the required height to set the depth - this will be well above water line, and a bung for draining the tank at the end of the day straight to the bilge.

[Dignity]

Ok, got it, the pump can be mounted below the duck board and the pipes only will show above. When under way though there must be a fair amount of turbulence under the duckboard, this might impinge on the performance of the pump.

[Oceanic Dave]

Collecting at Woolworths or BIG W - is the latest from Ebay. Does work.

[scottar]

Ok, got it, the pump can be mounted below the duck board and the pipes only will show above. When under way though there must be a fair amount of turbulence under the duckboard, this might impinge on the performance of the pump.

That's why you normally just use a standard bilge pump on a bracket with a scoop

http://www.bcf.com.au/online-store/p...ecommendations

It necessitates drilling a small hole in the base of the pump where the scoop pipe sits and allows the scoop to force water (due to forward momentum) directly into the pumps impeller.

[Dignity]

I very come up with several options so far but I will need to take some photos and do some drawings to show them, I will do so today and post later. Very close investigations show that previously there had been a hole drilled through the transom and duckboard which has since been filled in (near as I can tell I am the fifth owner, in past life I thought I could make out the name Ricochet before I cut and polished her) which I would hope to utilize.

[Dignity]

Ok, waiting for my mobile mechanic to show up but he is caught in gridlock trying to get through, bloody govt pours heaps of money into roads to the Gold Coast but the Sunshine Coast is in the too hard basket. Ok had my rant for the day, so having more time up my sleeve than anticipated I decide to do have another look at the live bait well, deck wash idea.
I have occasional dealings with Sea Trek Marine here on the coast and Al have me a couple of fittings to play with, namely a scoop for the deck wash and a scooped bracket to hold a bait pump, the tube scoop can easily be modified to suit my needs. I am hoping not to need the scooped bracket.

Now I found some previously drilled holes in the transom that had been filled, I’d noticed the one inside earlier but thought it was a crack in the gelcoat and hadn’t realised what it was. The hole is 45mm centre above the duckboard and inside the transom 175 mm above the deck floor.

Now I was hoping to still only drill the one inlet hole for both the live bait pump and the deck wash, I will still need an outlet for the live bait tank but that is not an issue. The other problem is that there isn’t much room on the port side as this is where the transducer was installed, not a problem with a pod boat but reduces available room with both transducer and trim tabs. What I had thought of doing was using a Rule 401C pump with a bypass for the deck wash however two issues immediately spring to mind:
1. I don’t know the thickness of the transom but even so how would I manage to get a 90 degree bend so close to the transom for the pickup tube.
2. Even if I get the pump installed through the transom should the pump be protected with a filter, I did have in mind a 19 mm inline filter that is used for irrigation purposes. The only place this could go with this set up is below the duck board which in itself will be an issue as it can only be cleaned when the boat is out of the water. The deck wash would have its own filter after the bypass but would this also mean a flow reduction.
Now as the pod is around waterline level do I need the pickup, I imagine it would as it can be in and out at times offshore but if not would one of these connected to the bottom of the pod do the trick.

Edit, worked out how to connect in option 1, get a 90 degree fitting, put it in place and rotate the pump from inside.