Friday, April 11, 2014

Plumbing Nauta Flexible Water Tanks

AJ installed the Nauta water bladder tanks along with the pressure water and filtration system a month or two ago, but I've been too sidetracked with all this sailing and moving aboard business to write about it.  Just when the blog has it's first page of pretty pictures, back to boat work!

The water bags come with substantial corner grommets that we attached 1/4" eye bolts to, but they come with no fill nor draw fittings. You purchase them separately and decide where they go to suit your needs.  Not a problem with a hard plastic tank: you basically just drill holes and use thruhull fittings.  The water bladder uses the same concept, you just have to cut two perfect circles in the bag and hope it works, which it did perfectly, but it makes you nervous.


We put one of the tanks inside the keel.  This used to be a 70 gallon fiberglass water tank (the hull sides and a top), but we choose not to trust our sole source of drinking water to 43 year old Chinese polyester with keel bolts inside.  This tank is the reason we are switching to the Nauta bags in the first place.


When it fills up, it wedges in the keel quite nicely, and since this is an old water tank itself, it is isolated from the bilge by bulkheads and a top.

The other tank went in the bottom of the galley pantry locker, located under the pineapple.  The faucet is also new as the old one stuck up above the companionway.  Not only did it obstruct the entry, but it's absurd height made it's water stream more of a splashing spray.  Not very efficient. The deep pantry well has been a conundrum for a while.  We had considered the amount of food that could be stored there, but the method of retrieval seemed excessive, especially when we've got so much storage elsewhere. The water tank fills the space perfectly, and even still we raised the shelf another six inches to be able to reach the pots and pans inside and give the tank full bulging capability.


AJ made a nifty little selector manifold for the tanks that feeds to a fine screen filter to protect the pump.  Why did we never get around to painting this compartment?  I don't know.  The third feed nipple is hopeful.  We have a space set aside on the starboard side, just no third tank yet.


The final component in the water system is the massive carbon filter.  Mostly because we like our water taste-less, but also, a little bit of chlorine-based water purification additive must go into the tanks and system (1oz per 25 gallons), and I prefer it not in my body.

So far it's all been working great!


4 comments:

  1. Hello from SVSanibel, good to see you guys on the water and the boat looks fantastic. You guys have put in the work and have a strong seaworthy, beautiful boat. Now is your time to reap the rewards, I think you will really enjoy the Bahamas- Texas voyage. I am excited for you both and hope we cross paths down the road. Jim and Lorie Nicolaus SVSanibel

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