Pre-filters and filter housings, The Watershed Wellness Center

Pre-filters & Filter Housings

A one-micron granulated silver-impregnated carbon filter. This filter will remove chlorine from the water as well as lead, trihalomethanes and other volatile organic chemicals such as benzene. Silver is impregnated into the carbon in order to insure that bacteria does not grow on the carbon. Since it is imbedded, or impregnated, into the carbon there is no chance the silver would leach into the water and be consumed. Even if it was consume, silver is NOT toxic to the body. The carbon filter also removes particulate (junk in the water) in the water down to 1 micron, including most bacteria.

How do I know when the Carbon filter needs to be replaced?
The carbon filter needs to be replaced approximately every 6-14 months depending on water conditions. If your municipal water supply has a chloride level above one-half (.5) part per million of chlorine in the water, then this is considered somewhat high. Anything over 1 part per million of chlorine is considered very high. The only way to know for sure if the carbon filter is used up is if you taste chlorine in the water after it has gone through the water ionizer or to test for it with a chlorine test kit such as those used to measure pool chlorine levels.

If you use municipal water, you can use a pre-filter with a carbon filter either under the sink or on top of the counter. The Watershed offers one-micron carbon block filters, carbon ceramic half-micron (.5) filters and housings from $55.00 - $120.00, depending on the configuration.

Jupiter Water Ionizer Filters

Technos/Masterpiece/Aqua Tonic/Regency II Filters 1-micron Carbon Filter: $59.00 [Add to Cart] [View Cart]
2 Technos/Masterpiece/Aqua Tonic/Regency II Filters Filters: $105.00 [Add to Cart] [View Cart]
3 Technos/Masterpiece/Aqua Tonic/Regency II Filters Filters: $144.00

Mavello Filters

Mavello .01-micron Hollow Membrane Filter Ultra (Filter Ultra): $94.00 [Add to Cart] [View Cart]
2 Mavello .01-micron Hollow Membrane (Filter Ultra) Filters: $170.00 [Add to Cart] [View Cart]
Mavello 1-micron Carbon Filter: $59.00

2 Carbon Filters: $105.00

3 Carbon Filters: $144.00

Miracle Fountain Filters

Miracle Fountain Carbon Filters: $59

2 Miracle Fountain Carbon Filter: $105

3 Miracle Fountain Carbon Filters: $144

Miracle Fountain Filter Ultra: $94

2 Miracle Fountain Filter Ultra: $170
[Add to Cart] [View Cart]

3 Miracle Fountain Filter Ultra: $240
[Add to Cart] [View Cart]

Miracle Fountain Carbon Filters/Filter Ultra Combo: $145

Watershed Approved Pre-filters
Pre-filters require either countertop housing or under-the-sink housing depending on exact conditions and volume of use.

Iron Filter
Average life: 9-12 months
Iron resin filtration. 99% iron removal. Can sometimes leave a metallic taste in the water.
$34.95 [Add to Cart] [View Cart]
0.5 Micron Ceramic & Carbon Filter
Average life: 9-12 months
twice the particle filtration of removes Chlorine.
$34.95 [Add to Cart] [View Cart]
1 Micron Carbon block Filter (10")
Average life: 9-12 months
removes Chlorine.
$34.95 [Add to Cart] [View Cart]
10 Micron Granulated Carbon Filter (10")
Average life: 9-12 months
removes Chlorine.
$24.95 [Add to Cart] [View Cart]
Sulfur Filter (KDF 55)
Removes Sulfur "rotten egg" smell from water. Also removes Chlorine. Can be used to filter bath or shower water as well.
Pre-filter Housings
Dual Housing - 10" (Blue)
$48.00 [Add to Cart] [View Cart]
10" Under-sink Filter Housing (Clear)
$24.95 [Add to Cart] [View Cart]
Above counter Filter Housing w/ Gooseneck Faucet
$39.95 [Add to Cart] [View Cart]

Hollow Membrane Filtration
Ultrafiltration membranes are porous filters with pore sizes in the region of a few to a few hundred nanometers. This makes ultrafiltration membranes suitable for the separation of large molecules and colloids from low molecular weight species.

Until 1960 the use of ultrafiltration membranes was restricted to lab-scale applications in molecular biology. A review of these applications has already been given by Ferry.

Two developments were necessary before ultrafiltration could become a competitive technique for large-scale applications.

The first improvement concerned the permeability of the membranes.
In 1962 Loeb and Sourirajan were able to prepare membranes with an asymmetric pore structure consisting of a thin, selective top layer and a porous sub-layer. Because the resistance against transport of these membranes is mainly determined by the top layer, which is very thin in asymmetric membranes, a significant increase of the permeability could be realized. Secondly, the development of modules and filtration systems was essential to scale-up the filtration process. This latter development took place in a federal research and development program in the USA during the 1960's.

The selectivity of ultrafiltration membranes is based on the difference in size of the components to be separated. The driving force for the transport of the components that are small enough to pass the membrane is a hydrodynamic pressure difference between the feed side and the permeate side of the membrane.

How they work: Ultrafiltration membranes trap suspended particles. They usually take the form of a cartridge formed from plastic fibers, which are spun around a central core, forming a 'bobbin' of filter material.

They effectively remove bacteria, microorganisms without having to discard any of the water. Pumps and storage tanks are not needed because of its high permeation rate.

Hollow Membrane Fibers

Single Fiber 50X

Outer Surface of Fiber

Specifications

TYPE		Technos/Mavello Carbon Filter	1 Micron Carbon Block Filter	Mavello Ultrafiltration Hollow Membrane Filter
Size	Dia.	67 mm	67 mm	67 mm
Size	Length	260 mm	260 mm	260 mm
Filtration Limits		1 micron	1 micron	0.1 micron
Operating pressure		5kgf / cm2	5kgf / cm2	4kgf / cm2
Operating temperature	5~40 C	5~40 C	5~40 C
Flow rate		16 gal / min	12 gal. / min	2 gal / min
Chlorine Removal		Yes	Yes	Yes
Average Filter Replacement		6-12 months	6-12 months	8-12 months