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Old 11-05-2008, 02:18 PM   #11
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You can buy filters that have different micron ratings:

Pneumatics 101

MICRON

A measurement equal to 0.000039 inches.

In reference to filtration, the average size of the openings between pieces of the filter media are represented in microns. For example, a 40-micron filter has larger openings than a 5-micron filter. Consequently, the 40-micron filter element will let larger particles pass through the filter than the 5-micron element.

As a general rule, the smaller micron rating for a filter is better, but as with most everything, there is a trade-off. Flow capability usually drops off as the micron rating gets smaller. To overcome this, low micron-rating filters must have larger elements to keep from sacrificing precious flow.

Another factor to consider is the fact that a filter with smaller openings, such as a coalescing type, will clog quicker than a general purpose filter. Replacing filter elements can become expensive if it is happening too often. A good solution to this problem is to use a pre-filter. Always install a general purpose filter (in the 40- to 50-micron range) upstream of a coalescing filter (5-micron range or less). The general purpose filter will capture the majority of the particles before they reach the coalescing filter, thus saving the coalescing filter element from clogging too soon. Even though this requires two filters and seems expensive initially, this could mean huge savings on coalescing filter elements in the long term.
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Old 11-13-2008, 08:47 AM   #12
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I too have heard the factory filter is a 1 micron filter, someone suggested a 5 micron filter really helps.
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Old 07-24-2010, 05:51 PM   #13
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This week on my 2nd trip w/ the trailer the pump was pulsing a lot & not a great stream from the taps. I checked some threads on here this morning then went out to the trailer. I removed the filter (OEM WaterPur used previously for 5 days or 1 tank of water) & turned on the pump. The pump worked fine & there was decent flow from the taps.

I had purchased a couple of filters (5 micron) a while back, so I installed 1 of them. Again the pump ran fine & the flow was OK.

I'll try to keep track of how long the filter is in use before the pump starts to pulse (here's hoping it doesn't).
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Old 07-27-2010, 10:27 PM   #14
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Quote:
Originally Posted by Half-Fast View Post
I too have heard the factory filter is a 1 micron filter, someone suggested a 5 micron filter really helps.
I checked the WaterPur website & the documentation that came w/ the filter & no mention of a filtered particle size.
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Old 07-31-2010, 09:41 PM   #15
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Today I checked the flow from the showerhead since the filter change. Much better & water was flowing from all the openings. This is a vast change from when the WaterPur filter was installed. Water appeared to be only coming from half the openings.

I wish I had thought of changing the filter during the trip.

Is it possible a lot of low pressure complaints are filter related rather than pump problems?
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