On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

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I will probably go up one wire guage due to the long run from the
battery that will be on the floor of the bow. My reason for getting
this pump is reading David Pascoes advice on the topic.

On Thu, 17 Sep 2009 12:02:45 -0700 (PDT), Frogwatch
wrote:

On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
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I will probably go up one wire guage due to the long run from the
battery that will be on the floor of the bow. My reason for getting
this pump is reading David Pascoes advice on the topic.

You can go up a gauge; but, there's really no reason to do so. The
leads will be rated for the load. What you'll generally run into on
considerable wire lengths is a nominal increase in resistance. Are
your leads 16awg? 14 awg would work. Where persons can get into
trouble is going with smaller awg sizes.

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On Sep 17, 3:24*pm, wrote:
On Thu, 17 Sep 2009 12:02:45 -0700 (PDT), Frogwatch





wrote:
On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
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* * * * * * *-------http://www.NewsDemon.com------
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I will probably go up one wire guage due to the long run from the
battery that will be on the floor of the bow. My reason for getting
this pump is reading David Pascoes advice on the topic.

You can go up a gauge; but, there's really no reason to do so. *The
leads will be rated for the load. *What you'll generally run into on
considerable wire lengths is a nominal increase in resistance. *Are
your leads 16awg? *14 awg would work. *Where persons can get into
trouble is going with smaller awg sizes.


Your absolutely correct that going to a smaller wire size is what gets
most people into trouble. However, I wouldn't go with anything
smaller than 12ga, and 10ga would be better.

That pump is ratted at 15.5 amps @ 12vdc, and 20 amps @ 13.6vdc.
Basing on a 25 foot run or wire, and depending on how you come at it,
the wire resistance of the smaller 14-16ga wire could have you
dropping 3 - 4 volts down the wire. The pump will not work nearly as
well when it's only getting 9 - 10 volts.

At least with the 12 or 10ga wire, you're reducing the copper loss
down to 1 - 2 volts, and the pump will thank you.

Take a look at http://www.powerstream.com/Wire_Size.htm At the bottom
of the page is a calculator that will let you plug in the voltage,
current, length and wire size, and will tell you the copper loss and
end voltage.

Good luck!

On Sep 17, 4:32*pm, Jack wrote:
On Sep 17, 3:24*pm, wrote:





On Thu, 17 Sep 2009 12:02:45 -0700 (PDT), Frogwatch

wrote:
On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
Posted via NewsDemon.com - Premium Uncensored Newsgroup Service
* * * * * * *-------http://www.NewsDemon.com------
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I will probably go up one wire guage due to the long run from the
battery that will be on the floor of the bow. My reason for getting
this pump is reading David Pascoes advice on the topic.

You can go up a gauge; but, there's really no reason to do so. *The
leads will be rated for the load. *What you'll generally run into on
considerable wire lengths is a nominal increase in resistance. *Are
your leads 16awg? *14 awg would work. *Where persons can get into
trouble is going with smaller awg sizes.

Your absolutely correct that going to a smaller wire size is what gets
most people into trouble. *However, I wouldn't go with anything
smaller than 12ga, and 10ga would be better.

That pump is ratted at 15.5 amps @ 12vdc, and 20 amps @ 13.6vdc.
Basing on a 25 foot *run or wire, and depending on how you come at it,
the wire resistance of the smaller 14-16ga wire could have you
dropping 3 - 4 volts down the wire. *The pump will not work nearly as
well when it's only getting 9 - 10 *volts.

At least with the 12 or 10ga wire, you're reducing the copper loss
down to 1 - 2 volts, and the pump will thank you.

Take a look athttp://www.powerstream.com/Wire_Size.htm*At the bottom
of the page is a calculator that will let you plug in the voltage,
current, length and wire size, and will tell you the copper loss and
end voltage.

Good luck!- Hide quoted text -

- Show quoted text -

I vote 10g.

On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
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* * * * * * *-------http://www.NewsDemon.com------
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When you think about it, that's really only a gallon/second.

On Thu, 17 Sep 2009 12:03:18 -0700 (PDT), Frogwatch
wrote:

When you think about it, that's really only a gallon/second.

Yes, and the reality is more like half of that.

On Thu, 17 Sep 2009 15:18:32 -0400, Wayne.B
wrote:

On Thu, 17 Sep 2009 12:03:18 -0700 (PDT), Frogwatch
wrote:

When you think about it, that's really only a gallon/second.

Yes, and the reality is more like half of that.

You could run smooth pipe straight to a seacock, no bends. Then you
wouldn't have to lift the water. It is a bad idea, of course, but you
would get more flow.

Casady

On Fri, 18 Sep 2009 15:20:25 GMT, (Richard
Casady) wrote:

You could run smooth pipe straight to a seacock, no bends. Then you
wouldn't have to lift the water. It is a bad idea, of course, but you
would get more flow.

Yeah, I guess you could just drill a hole in the bottom of the boat
and let the water out that way.

True story, friend of mine once had a 39 ft racing sloop in Stamford,
CT and hired a local teenager to help maintain it. Friend gets a
call at the office one day:

Teen: Mr A, there was a low spot in the shower that was collecting
water so I drilled a hole to let it out.

Friend: What! That's the bottom of the boat!

Teen: Yes, I found that out. Don't worry though, I put a screw in
the hole to keep it from leaking.

We went racing that weekend, screw and all. Everyone kept a close
eye on it however.

On Thu, 17 Sep 2009 12:03:18 -0700 (PDT), Frogwatch
wrote:

On Sep 17, 2:24*pm, wrote:
On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
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When you think about it, that's really only a gallon/second.

This is the one you really want:

http://www.starmarinedepot.com/Rule+Bilge+Pump+8000+Automatic+Submersible.html

I'm thinking about getting a couple of them for our trawler before we
head down to the islands next winter.

On Sep 17, 2:03*pm, Frogwatch wrote:
On Sep 17, 2:24*pm, wrote:





On Thu, 17 Sep 2009 09:33:19 -0700 (PDT), Frogwatch

wrote:
Bought a 3700 gph Rule pump for the Tolman just in case I take a lot
of water. *My normal bilge pump is a 750 gph one. *I intend to find
some smooth bore hose for it and some oversized wire to power it.
Downside is, it was expensive and I will probably never use it. *Might
even get a dedicated battery for it.

You should only have to match the wire guage of the leads on your pump
for your wiring.

--
Posted via NewsDemon.com - Premium Uncensored Newsgroup Service
* * * * * * *-------http://www.NewsDemon.com------
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When you think about it, that's really only a gallon/second.- Hide quoted text -

- Show quoted text -

That is pretty good capacity. You can't pour it out of a milk jug that
fast.

come to think of it, you can't dump it out of a pitcher that fast.

That's a lot of water!