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Old 02-28-2024, 09:22 AM   #1
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Lightbulb Is two water filter better than one?

Just a curious question, has anyone used two water filter connected together? Do two filters help make water cleaner?

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Old 02-28-2024, 09:59 AM   #2
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Originally Posted by RetiredTorng View Post
Just a curious question, has anyone used two water filter connected together? Do two filters help make water cleaner?
This is quite common with external water filters. You can purchase kits for two or three whole house filters in series. Usually the first filter is for trapping sediment. Each successive filter will trap smaller particles and specific bacteria and contamination. We have used one of those in the past but now days we just use a sediment filter at the hose and a high quality filter under the kitchen sink on the cold water line. That lets us filter the cold water for the coffee pot, cooking, and the dog. We use bottled water to drink.
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Old 02-28-2024, 01:21 PM   #3
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The response relies on "depends".

It depends on what you want to filter.

Contaminants can be minerals, metals, chemicals, bacteria, etc...
All of them have different sizes and different ways to filter.

Two (or 3 or more) filters not necessarily are better than one depending on what you have in the water....
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Old 02-28-2024, 01:34 PM   #4
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I use one of the Camco blue filters at the spigot to filter out sediment before entering the rigs whole house filter.

There are numerous options for external dual filter systems that can be researched with a simple web search.
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Old 02-28-2024, 03:06 PM   #5
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Two water filters

Thanks for the response. I may travel to remote areas, not sure if the water qualities are the same as in the metropolitan areas. Those are the places I may consider two water filters. I will look into those multi-filter water systems. Good advices are always appreciated.
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Old 02-28-2024, 03:30 PM   #6
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Thanks for the response. I may travel to remote areas, not sure if the water qualities are the same as in the metropolitan areas. Those are the places I may consider two water filters. I will look into those multi-filter water systems. Good advices are always appreciated.
I do what Bob Nodine did- one at the faucet, and removed the internal house filter and installed a Culligan drinking filter/faucet.

I used to install water purification systems, and can smell anything off, So I always do the water color and snif test, (clear cup or glass and look and smell) but I can't detect bacteria yet. :-)
I won't hook up if it's brown and/or stinky! Fresh tank has spring water from home, until gone.
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Old 02-28-2024, 04:01 PM   #7
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two water filters

Great advice. I will look into that. Thank you very much.
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Old 02-28-2024, 05:54 PM   #8
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....That lets us filter the cold water for the coffee pot, cooking, and the dog. We use bottled water to drink.
Coffee water is drinking water too! We use bottled water for coffee and drinking. All other water uses, is whatever is in the tank, usually my treated city water until I need a refill on the road.
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Old 02-28-2024, 07:11 PM   #9
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Just a curious question, has anyone used two water filter connected together? Do two filters help make water cleaner?
Multiple filter setups have different sorts of filters at each stage. In my case I have a three-filter set up. Filter 1 to catch sediment, filter 2 to catch smaller particles and organic stuff with a carbon filter, third a filter to remove metal contaminants like iron. Finally, I have a softener to prevent calcium build up on the water system.

You can also install a filter that can make water drawn from a stream "safe" by filtering out bacterial contamination.
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Old 02-28-2024, 07:29 PM   #10
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Coffee water is drinking water too! We use bottled water for coffee and drinking. All other water uses, is whatever is in the tank, usually my treated city water until I need a refill on the road.
Thanks for many good advices. I think I will use bottled water for drinking water, filtered water for cooking and bathing.
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Old 02-28-2024, 07:53 PM   #11
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Thanks for many good advices. I think I will use bottled water for drinking water, filtered water for cooking and bathing.
Using bottled water is an unnecessary expense. I sanitize my water system before each major trip then after that I have no concern about using city water from private commercial campgrounds or even city state or federal campgrounds using my filter setup. On top of that the tap output is regulated and by law it must meet federal water standards. My filter setup just provides an extra measure of purification to eliminate things like calcium that is safe to drink but will damage the water system over time.
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Old 03-01-2024, 04:47 AM   #12
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Using bottled water is an unnecessary expense. I sanitize my water system before each major trip then after that I have no concern about using city water from private commercial campgrounds or even city state or federal campgrounds using my filter setup. On top of that the tap output is regulated and by law it must meet federal water standards. My filter setup just provides an extra measure of purification to eliminate things like calcium that is safe to drink but will damage the water system over time.

And what filter setup do you have?

Concerns for drinking water are contaminates, both biological and particulates. Some filter systems will reduce contaminates to “safe levels” but do nothing about biological contaminates like bacteria, cysts or viruses.
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Old 03-01-2024, 07:18 AM   #13
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And what filter setup do you have?

Concerns for drinking water are contaminates, both biological and particulates. Some filter systems will reduce contaminates to “safe levels” but do nothing about biological contaminates like bacteria, cysts or viruses.
I have the Camco TastePURE CamperRV Water Filter - https://www.amazon.com/dp/B0006IX87S...roduct_details which is advertised to remove a lot of items in the water. I also have Crystala RV/Camper water filter- https://www.amazon.com/dp/B0006IX87S...roduct_details. I was hoping using two different kinds of filter will provide better water quality.
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Old 03-01-2024, 05:41 PM   #14
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The std “blue” inline filters are good for filtering down to 20 micron in particulate size. To be effective, the filters should be .5 micron or less to lower contaminates to “safe” levels. Adding a uv filter would give added safety to address biological contaminates. This, all to make safer drinking or dish washing water.

As some have said, easier to filter to a level that you feel comfortable with and use bottled drinking water.
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Old 03-01-2024, 06:32 PM   #15
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We grew up drinking city water loaded with chlorine & added fluoride brought to us through lead pipes. We even drank out of a hose in the backyard. Ignorance is bliss!

P.S All of us drinking bottled water to be safe are sucking down tons of microplastic particles (Drink more beer)
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Old 03-01-2024, 07:17 PM   #16
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(Drink more beer) [/QUOTE]



Correct for the microplastics. New study shows the lined cola cans contain microplastic. Have not read anything about beer, yet.
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Old 03-01-2024, 07:25 PM   #17
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Makes one wonder why beer comes in aluminum cans and not plastic bottles.
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Old 03-01-2024, 08:15 PM   #18
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Water filter

Definitely beer and wine are better choices, just don't drink and drive. Thanks for the good advices.
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Old 03-01-2024, 09:47 PM   #19
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I sanitize my system twice a year. We have no problem drinking water from the tank. Or water from the CG’s spigot. I use a blue filter. But it is mostly charcoal for taste. Anybody who has back pack hiked for several days and nights knows how to drink water. I can’t believe everyone that’s afraid to drink water in their tank or from the spigot.
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Old 03-02-2024, 01:16 AM   #20
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Originally Posted by WhatnxtRV View Post
And what filter setup do you have?

Concerns for drinking water are contaminates, both biological and particulates. Some filter systems will reduce contaminates to “safe levels” but do nothing about biological contaminates like bacteria, cysts or viruses.
See post number 9 on this thread or look at the photo below.

I do not have the bio filter. That would be something I would use if I ever planned to go to Mexico or draw untreated water from a stream. I would never draw water from a standing source like a pond.
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