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TOPIC: What to do with an unused holding tank?

What to do with an unused holding tank? 24 Sep 2007 01:56 #1

  • newcal
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Due to our low population density nearly all boats over here in Nouméa don't have or use holding tanks. On my 45 I can't figure out what to do with my unused (plastic) holding tank. Could I transform it into an extra diesel fuel tank? If not could I just rip it out (but how?) and use the space for storage, a freezer or a wine cellar? :)

Would appreciate any ideas.

By the way does anyone know the capacity of a 4588 holding tank?

JP

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newcal
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What to do with an unused holding tank? 24 Sep 2007 02:25 #2

  • SomeSailor
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Would make a nice freshwater washdown system holding tank...

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What to do with an unused holding tank? 24 Sep 2007 06:48 #3

  • Coastrider
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I know the 4788 has 70 gal. holding tanks but I believe the 45's have 48 gallon tanks.

Cheers,

Mark

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What to do with an unused holding tank? 24 Sep 2007 14:48 #4

  • avanti42
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I would leave it in place in case you ever sell it.

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What to do with an unused holding tank? 24 Sep 2007 21:36 #5

  • mmichellich
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Had a friend that installed a legal processing and pump over board system on his Bayliner and cut the top out of the no longer needed holding tank and used it for tool and parts storage. Only consider this alternative if access is easy.

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Started boating 1965
Bayliners owned: 26 Victoria, 28 Bounty, 32, 38, and 47 since 1996

What to do with an unused holding tank? 29 Sep 2007 20:54 #6

  • nile
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I removed mine and replaced it with a supplemental fresh water tank. A transfer pump sends the water in the main tank when needed. The water maker feeds that sup. tank so that, if there is a problem with it, the main supply is not wasted.
et ça sent moins.

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NILE
1989 3288MY 305's US Marine
Fort Lauderdale Florida

What to do with an unused holding tank? 30 Sep 2007 05:53 #7

  • newcal
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I followed SomeSailor's idea and transformed my holding tank into a freshwater (non potable) foredeck washdown system. I had a hell of a time running a 3/4" hose from the discharge pump to the stbd side of the pilot house where I attached an outlet for a hose. But it was worth the hassle.
Works great for washing down grubby salty windscreens and muddy chain when weighing anchor. Flow rate is powerful & continuous so I didn't use taps just a simple reduction to make the tank last longer. However, I attached inline a Y valve in order to redirect the flow to the discharge seacock in case the holding tank becomes compulsory one day.

Thanks for your help.

JP

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What to do with an unused holding tank? 30 Sep 2007 10:29 #8

  • dmcb
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I guess I am late with this but you could fill it with beer.

That is where beer ends up over here anyway. :)

That sounds like a great use and you could also use it for an outside shower if necessary.
Doug

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Started boating 1955
Number of boats owned 32
Bayliners
2655
2755
2850
3870 presently owned
Favorite boat. Toss up. 46' Chris Craft, 3870 Bayliner

What to do with an unused holding tank? 30 Sep 2007 21:29 #9

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Thanks for your help with this thread, I am now thinking of how I could recuperate rain water to fill up (by gravity) my holding tank. During our tropical rainy season (Dec to May) you can fill up anything quite rapidly. I might try and hook up a hose from my dingy (Walker Bay 8') on the fly bridge? Just need to adapt it to the evacuation plug.

JP

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What to do with an unused holding tank? 30 Sep 2007 22:12 #10

  • SomeSailor
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Perhaps you could rig your scupper drains to valve into the tank? If you wanted to fill, just divert the rainwater that normally would washdown and out the scupper drains... back into the tank. You'd even be recycling the water if the valve was left open during a washdown. Be sure and label it non-potable though :)

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What to do with an unused holding tank? 01 Oct 2007 00:56 #11

  • newcal
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Good idea. Access to a Y valve on the scupper drain hose should be OK from the bottle storage. But to make things easier, I'm thinking of putting an overflow bypass back down to the scupper drain seacock so when my tank is full, excess rainwater will automatically flow out. That way, I don't have to monitor the fill up operation and tank gets auto rise out during a downpour.

The idea of recycling pleases me too.:)

Thanx

JP

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What to do with an unused holding tank? 01 Oct 2007 01:46 #12

  • dmcb
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The idea of recycling pleases me too

Then you should drink the beer first. :)
Doug

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Started boating 1955
Number of boats owned 32
Bayliners
2655
2755
2850
3870 presently owned
Favorite boat. Toss up. 46' Chris Craft, 3870 Bayliner
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