Forums › General Discussion › Value of forward water tank

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    • #68499
      kalinowski
      Participant

      I’ve been considering modifying the space under the v berth by converting it from water to storage. I was wondering if anyone else had done this and how they utilized this space (ground tackle perhaps?).

      I may be naive, but I believe the side tanks (60 gallons each) and a water maker will meet most of my planned cruising needs here in the
      Sandwick Isles.

      Questions:

      1. How will this affect boat trim?

      2. Any structural issues?

      3. Has anyone else done this and how was the space utilized?

      Mahalo

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78133
      Anonymous

      Dan,

      By all appearances, Silverheels’ forward water tank has never been used.
      Certainly it hasn’t since I”ve owned the boat. I plumbed it into the
      boat’s system when I re-did things a few years ago, but only because I
      was in the bilges anyway and had a spare length of new hose handy. As it
      is, my boat is slightly bow-heavy. Adding 400 lbs of water forward would
      only exacerbate the imbalance. I’ve thought of cutting that tank open to
      use the space for storage, but haven’t so far. There may well be some
      structural value to its solid top traversing the hull as it does, but
      that’s just a guess.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78134
      kalinowski
      Participant

      Thanks Tor. Where you dropping the hook these days?

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78135
      Anonymous

      I’m anchored in Las Salinas, Dominican Republic (south coast), waiting
      for the wind will ease off a bit before I continue west.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78136
      unabated
      Participant

      Here’s my strategy.
      I have my water maker (35gph) plumbed into my Port and Bow Tanks.
       I use the Stb tank as a back up (in case Sh*t happens).

      Currently in Thompson Bay on Long Island. Working my way down the Jumentos to the Ragged Island.

      Alan
       UNABATED
      — On Mon, 1/23/12, Silverheels wrote:

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    • #78137
      joe shimkonis
      Participant

      How hard would it be to convert it to a fuel tank?

      ________________________________

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      Joe Shimkonis

    • #78138
      Anonymous

      Probably not hard at all, although I’d first seek some knowledgeable
      advice about storing diesel fuel in a fiberglass tank. Might be wiser to
      cut that forward tank out and install a proper (aluminum?) tank in its
      place. For sure our boats could use more fuel capacity. I haven’t
      pursued it because I live aboard and I’m leery of introducing any kind
      of diesel odor into the forward end of the boat. Also, as I said, I have
      a trim issue, probably caused by too much ground tackle.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us



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    • #78139
      madsailor
      Moderator

      Diesel fuel doesn’t affect fiberglass or resin. Other than making the
      fittings better, you should be good to go.

      Bob

      I’m not being terse. This is from my mobile.
      On Jan 23, 2012 4:50 PM, “Silverheels” wrote:

      Quote:
      Probably not hard at all, although I’d first seek some knowledgeable
      advice about storing diesel fuel in a fiberglass tank. Might be wiser to
      cut that forward tank out and install a proper (aluminum?) tank in its
      place. For sure our boats could use more fuel capacity. I haven’t
      pursued it because I live aboard and I’m leery of introducing any kind
      of diesel odor into the forward end of the boat. Also, as I said, I have
      a trim issue, probably caused by too much ground tackle.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us



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    • #78140
      Anonymous

      Well, then, there’s your knowledgeable advice. Thanks, Bob.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us



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    • #78142
      kalinowski
      Participant

      This may be another alternative to pulling the engine to R & R the existing tank after the dreaded pinholes appear. Then just cut up and pull the old fuel tank.

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78144
      Anonymous

      Maybe, but for cruising the boat needs more fuel capacity, not less.
      Better, perhaps, to do both; add another tank AND replace the leaky
      original.

      IMHO,

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78145
      kalinowski
      Participant

      Sounds like a few good ways to use the forward tank space. Has anyone actually cut an access to the tank? Have you noticed any strange spider marks on the hull after? Looking for experience here. As they say, “measure twice, cut once”.

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78146
      Anonymous

      Dan,

      My forward tank already has an inspection port in the top. If I were
      going to convert it to a storage locker, I’d cut a bigger, framed access
      hatch into it, but not cut away the whole top or even half. That solid,
      wall-to-wall span of ‘glass has to be structurally reinforcing the hull
      in an area of these boats already known to be under-built. I wouldn’t
      remove it.

      MHO,

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78147
      kalinowski
      Participant

      Thanks for your insights Tor. Heading to Bocas for H season?

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78148
      Anonymous

      Probably not this summer; hopefully the next.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78149
      Seawater
      Participant

      I put in a large framed water tight access port in mine and use it as dry storage or a water tank depending on what I need. When the Saba rock resort in the Bitter End BVIs offered free water with a mooring ball, I filled her right up.

      I also ran a hawse (sp?) pipe right through the water tank, and I can run my chain back down to the bilge for longer runs. Usually I keep half of the chain up in the bow, and half in the bilge.

      Getting it back in the bilge after deploying more than half is requires at least two people.

      I used to have pictures posted on the site, maybe they are still up.

    • #78150
      Seawater
      Participant
    • #78151
      Anonymous

      Walter,

      Do you have any photos of the hawse pipe installation through the water
      tank?

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78152
      Seawater
      Participant

      No, Sorry Tor. i will try to get some next time I visit the boat, but that may be a while. I took a large diameter sch 40 pvc pipe and epoxied it in at both ends. Then I took a smaller diameter pipe and ran it through the larger, and back to the bilge. That way, if the chain wears out the pvc, I can just pull the smaller pipe and replace it without any cutting or epoxy work.

      I have a windlass on the bow, so I have to have a crew member pulling the chain out of the hawse pipe into the bilge to get it back there.

      I chose to have the chain fall in the lower compartment in the bow, there is a pipe from the windlass down tot he top of that compartment. There is a second pipe from the bottom of that compartment to the bilge. By doing it that way (instead of a pipe from the bow to the bilge) I can keep some of the chain up front for easy deployment, and I don’t have to worry about whether the fall into the bilge is enough to pull muddy chain all the way through that long pipe from the bow.

      The chain has to have some light tension on it to keep a chain pile from forming forward and blocking the hawse pipe, and to keep the links from going sideways and jamming.

      A secondary

    • #78153
      Seawater
      Participant

      BTW Spirit has a similar arrangement but with a windlass in the bilge. Also they go around the water tank with rollers that look like those on a boat trailer instead of through the tank. If you look at the topics on the list for “Spirit is for sale” you will find a link to some pictures.

    • #78154
      Anonymous

      Thanks, Walter. I believe I understand what you did. It makes a lot of
      sense and would almost certainly alleviate the slight bow-down trim
      issue in my boat. On the dark side, I’d lose the watertightness of my
      chain locker (which I redesigned some time ago, getting rid of the hatch
      and anchor well on the foredeck, etc.), re-opening my bilges to seawater
      and bottom muck. Seems like everything’s a trade-off on a boat.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78155
      kalinowski
      Participant

      Tor: The gear, the boat and I are all in the same place and I can now start modifying my ground tackle system. I am planning to follow your approach, which is to divide the existing locker vertically for 2 rodes ( 300 ft of 3/8 and 250 ft of 12 strand with 50 ft of chain). I will then seal off the anchor locker door on deck.

      You mentioned a slight bow trim problem. Is this something that has to be compensated for? Are there any “I wish I had done that” suggestions you could make?

      Mahalo

      Dan Kalinowski
      Jolly Lama #135
      Ko Olina, O’ahu

    • #78156
      Anonymous

      Dan,

      I only have 150′ of 3/8″ chain + 100′ of 5/8″ nylon rode on a 45 lb.
      CQR, and 50′ of 3/8″ chain + 200′ of rode on a 66 lb. Manta. They’re
      handled by a Lofrans Project 1500 12V 1200W vertical electric windlass
      with a drum above a chain gypsy. The nylon rodes are long-spliced to the
      chain and pass smoothly through the gypsy. It all works, but here’s what
      I’d do differntly now:

      1) I’d use 5/16″ chain instead of 3/8″, to reduce the weight and
      volume. It’s plenty strong enough.
      2) I’d install a horizontal windlass rather than vertical, to handle
      either anchor with equal ease.

      One of the smart things I did was design a 2-piece, removeable divider
      for the chain locker. I can pull the rodes out onto the deck, remove the
      divider through the bulkhead doorway, and squeeze the upper half of my
      body up into the chain locker to service things in there. A fixed
      divider, which was the common advice, wouldn’ve been a big mistake.

      I don’t know how to “compensate” for the slightly overweight bow at this
      point, other than to stow lighter items forward and heavier things
      farther aft as much as possible. I doubt the casual observer would even
      notice the imbalance, but I know it’s there.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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    • #78159
      kalinowski
      Participant

      Mahalo Tor.

      Dan Kalinowski
      JollyLama #135
      Ko Olina, O’ahu

    • #78161
      Anonymous

      Reef early, Dan.

      Tor


      Silverheels, P-424 #17
      http://www.silverheels.us


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