Water Storage in Flexible Discharge Hose Amidship

Published date: November 20, 2015
  • Boat Type: Boat Type

Installed lay flat discharge hose with sealed ends as water storage in the bilge right next to the ballast tank:

12 feet long from base of the stairs under the galley to the front edge of the forward V berth locker. I like the approach for the following reasons: 1) weight distributed evenly amidship, not bow and not stearn, and will not change the balance with water usage. 2) weight located at absolute lowest position in the boat, contributes to ballast effect, 3) No removal of flotation, and actually absolutely no modification to boat required, 4) Does not take up any usable space, it fits in the V slot next to ballast tank, and helps keep storage bins in the lockers level, 5) cheap.

The material is very tough, I think considerably thicker than conventional flexible water tank material, it is rated at 55 psi. It is also fairly cheap, here is a link to various sizes of lay flat hose:

http://m.globalindustrial.com/m/g/plumb ... Bulk-Hoses

And quick prices and volumes of different size hose,
3" hose = 5 gallons for $16.25 (20 feet cut to 12)
3" hose double run looped = 10g (30 feet cut to 24ft and folded in half)
4" hose = 8 gallons for $20.25 (20 feet cut to 12)
4" hose double run looped = 16g (30ft cut to 24 ft folded in half)
6" hose = 14.5 gal for $33 (10 feet total) but harder to find 6" pvc fittings.

I used regular white PVC plumbing, with hose clamps and PVC cement, to cap and plumb the ends, which is also very cheap.

With this installation, any leaks will be obvious, with water accumulating in the bilge next to the hose, and no movement of the hose is realistically possible, even without attaching the hose to anything, it is confined in that location.

One could also put a shorter section of hose on the starboard side and plumb it in together for lateral balance.

Published by: Flightfollowing

Model Year: 2006
Photo Caption: End of Discharge hose tank under galley near stairs


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