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Old 09-22-2017, 07:18 AM   #1
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Water Filter System for Drinking

We are not live aboards, but my wife and I spend at least 100 nights per year on our boat, year-round.

I previously had a dual stage and UV light filter system Made by water fixer. Overall I give the system a B-.

I am just starting my research, and curious to get input from others regarding a high and purification system. I want a good unit that will kill just about anything out there microbial or viral.

Thanks in advance.
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Old 09-22-2017, 07:40 AM   #2
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Two things. How about one of those ubiquitous RO units that many have under their kitchen sinks - millions in use. Second, carry two 5 gallon water coolers.

But, if you are filling from city water and keep your water tanks clean, you'll do just fine.
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Old 09-22-2017, 08:03 AM   #3
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We filter water as it comes aboard, down to .5 micron with carbon block if it's going into our tanks. Then we use a Pur filter pitcher for cold drinking water, coffee, etc.

Forespar now makes a drinking water filter faucet intended for the filter element to be easily changed... I think also .5 micron carbon block... but they don't actually answer any e-mail asking what the countertop penetration size (diameter) might be.

None of that will "kill" stuff, though...

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Old 09-22-2017, 08:19 AM   #4
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Quote:
Originally Posted by Fletcher500 View Post
We are not live aboards, but my wife and I spend at least 100 nights per year on our boat, year-round.

I previously had a dual stage and UV light filter system Made by water fixer. Overall I give the system a B-.

I am just starting my research, and curious to get input from others regarding a high and purification system. I want a good unit that will kill just about anything out there microbial or viral.

Thanks in advance.
Curious, why the need for UV? As someone else said, if you're filling from a muni supply, it's got a residual so there's really no compelling reason for the UV. If you're looking to fill with water that is known to be contaminated, it makes sense.

We live aboard, travel extensively, have a carbon T&O filter, that's it. In 10 yrs. have never given the water a sideways glance, and I'm a retired master plumber and certified water treatment specialist. Have installed a LOT of UV systems, IMHO it's simply not needed on a boat in domestic environs. If you're planning to 3rd world cruise, that's a good reason for UV.
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Old 09-22-2017, 08:20 AM   #5
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I have a 2 element Whirlpool under sink setup with seoarate water spout.

Sold by Lowes and Amazon.

As long as I get city water from most places, I feel the filters do enough.

The definitely get most tastes out, but some water from iron rich areas are tough to make tasteless.
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Old 09-22-2017, 08:48 AM   #6
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................ But, if you are filling from city water and keep your water tanks clean, you'll do just fine.
That's they key. Start with a clean system and put nothing but clean water into it. Use a drinking water safe hose and use it for nothing but filling your water tank. Don't leave it on the dock where other people can borrow it to rinse their holding tanks.
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Old 09-22-2017, 09:32 AM   #7
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"How about one of those ubiquitous RO units that many have under their kitchen sinks - millions in use."

Most of these use 10-18 gallons of water to make a quart? of filtered water.

OK dockside if not paying for water.
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Old 09-22-2017, 10:08 AM   #8
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Originally Posted by psneeld View Post
I have a 2 element Whirlpool under sink setup with seoarate water spout.

Sold by Lowes and Amazon.

As long as I get city water from most places, I feel the filters do enough.

The definitely get most tastes out, but some water from iron rich areas are tough to make tasteless.
I also have a 2 filter system with a separate spout. Seems to work fine.
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Old 09-22-2017, 01:17 PM   #9
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I have lived aboard for coming up on 12 years on 3 different boats.

Keeping "floaters" out of the water system is really hard....for a variety of reasons.

The worst offending hoses are tbe Marine/RV hoses that are translucent white ones. They seem to grow algae quicker than almost any other hose I have used.

Heck in many areas if you hold a glass of city water up to the light there are sometimes things floating in it.

Not sure I need a one part filter or a threee part system to feel safe....but the 2 filter system I have seems to remove any tastes in the watet and it is perfectly clear every time.
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Old 09-22-2017, 04:38 PM   #10
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Thanks for the feedback. I have not checked out those RO systems yet, but if they have that much waste, its a no go because we don't have a water maker.


I took on water at Catalina Island a couple years ago, and whatever was in there did a number on my domestic water quality. I had a lot of particulate matter that was visible, and the stuff you cant see can be even worse. It took about a year of several bleaching's to get it right again.


Personally, I think a good filter system is worth the investment, and yes I also drank out of the hose when I was young and survived
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Old 09-22-2017, 05:04 PM   #11
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Good filter and filter systems can be had from places like
RV Filter Store.
Although they are aimed at RV. They should be able to offer suitable units.
Add a ceramic filter and the UV won,t have much to do.
Keep the contaminants out of the tanks as first step.
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Old 09-22-2017, 07:05 PM   #12
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First, bacteria will always get into a tank, period. Especially a tank that is left for some time. Bacteria also travels with air. Air moves in an out of your tank, thru the vent, with day and night temperature changes. Chlorine in city water evaporates out if no new water is added. City water leaves many thing in that a filter system removes. If you haven't had a problem, you're lucky.
The best places to buy filter sets is Amazon or Ebay. Then you're using standard filters replacements, too. Common sets are 1-5 micron sediment, carbon block and gac. They remove many things the city water leaves in. Look up online. Standard sizes go from 2.5x10 to 4.5x20. The bigger the filter, the longer it lasts.
UV light kills bacteria, but usually needs 120v AC. I use one before the tanks. I make all my water and it's sanitized before the tank. I also add chlorine. I use a cheap pool chlorination test kit ($5 Amazon) and add to the lowest mark on the gauge. Unless I screw up, I can't taste it.
I know commercial fishermen that use house RO membranes and no filters in clean ocean water. They don't remove as much salt but do produce water. I drank it. Not as good as mine, but is drinkable if you can tolerate the salt.
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