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发布日期:2021年08月02日
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@SweetwaterLLC
Rainwater Filtration and Rainwater Purification

 This page describes the rainwater purification systems I sell.

 

rainwater purification, purifying rainwater, rainwater filter


Kitchen Defender for rainwater
with 5 micron filter,
UV light, and Carbon block

Rainwater collection can be simple or complicated depending on whether or not you've planned for it before building or are retrofitting an existing structure.  I recommend searching Amazon for books on rainwater collection, such as Design for Water.  While this book's information on rainwater collection is very good, it's information on rainwater purification is not.

Rainwater purification has grown more complex due to the spread of pollutants on trade winds that travel all around the planet.  Mercury from coal plants in China spreads to the entire Western US.  When collecting rainwater or spring water plan to purify for bacteria and the presence of mercury and pesticides.  Rainwater purification and rainwater filtration need not be complex or costly, but treating rainwater must be thorough enough to account for the pollutants likely to be present.  Mercury and pesticides are now present even in pristine environments requiring rainwater purification even in these locations.  Purifying rainwater is similar to what would be done for high quality mountain spring water.

If you're planning to drink the rainwater then my 4 stage Kitchen Defender with UV light is perfect for purifying rainwater or spring water.  ($470) In remote areas with no electricity you can use my 3 stage Kitchen Defender with ceramic filtration for bacteria is great ($360) but you'll have to use an electric or manual pump (a foot pump like those used on sail boats will work) or gravity to get the water to flow through the system.

 

Click here to request specifications and pricing on the Kitchen Defender for Rainwater

To preserve the integrity of the Kitchen Defender from sediment you'll need to use a whole house 5 micron filter ($205).

 

For whole house rainwater purification you'll need my whole house rainwater system: Sweetwater's Whole House Rainwater Treatment with UV light.

Collecting rainwater will be unique to each building site but I've included a sketch and a couple of photos to provide some ideas on the approach.  You'll need to collect rainwater from a rooftop, filter the large debris and the initial wash, then store the water, and then pump it to your rainwater purification system.  Filtering rainwater with a large micron filter is a good idea but treating rainwater should take place after storage because it will be virtually impossible to keep the stored water contaminant free.

 

rainwater collection, rainwater purification, collecting rainwater

 

Also available as a pdf: rainwater collection system

 

Here are some ideas for collecting and purifying rainwater drawn by a rancher in Texas who uses my system:


rainwater collection and diverter valve sketch

 

collecting rainwater, filtering rainwater, treating rainwater, rainwater collection


The above photo illustrates storage tanks used by a customer in Texas.

 

collecting rainwater, rainwater collection, filtering rainwaterWater is then piped to the point of use.

The photo on the right illustrates the overflow for the initial dirty water after a rain.

I can also provide whole house solutions including Sweetwater's Whole House Rainwater Treatment with UV light. Click on the link to request specifications and pricing.

 

 

 

Request specifications and pricing on the Kitchen Defender for rainwater

To preserve the integrity of the Kitchen Defender from sediment you'll need to use a whole house 5 micron filter ($205).

 

 

 

 

 

If you'd like to discuss your specific project, give me a call.

***

 "What's in YOUR Water?"

James P McMahon, Jim McMahon, Sweetwater, LLC
James P McMahon
Ecologist

 

 

 To view my experience and credentials:

JPM Biography

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I don't take American Express