water, water everywhere......

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Fair points David, will let you know if I get any issues with the 10" industrial / household units.
Joe.

[/ QUOTE ]Do you mean that you haven't given your system a proper trial? My recommendation for the General Ecology/Seagull comes first hand from the previous owner of my boat who told me he had never bought a drop of bottled water during his entire circumnavigation and my experience over 3 years of living aboard. I have serious doubts about the 10" filters unless you can obtain the right sort of elements.
 
I have to admit to a wee cheat here David..

Due to the fact I bought a Jabsco Carbon Silver unit, and I still have the filters.. last 2 years on average !!!.. I have 2 10" UNITS, a 5 followed by a 20 micron (Polyester me thinks) ??.. then fed to the jabsco... but I DO have Carbon Silver units for the 10", wil look up the spec and post.... just not had to use them as of yet...

Another reason to standardise on 10" units was the Schenker.. makes spares easier ?.

to be honest, the jabsco unit is utterly superb, it lasts longer with prefiltration, but the normal filter lasts a good 12 months full time use... the "desire" to change it is fuelled only by standardisation of spares.
 
Normally you shouldn't need a 20 micron in series with your 5 micron. In practice all you need is the 5 micron as the larger particles form a paste around the filter that the smaller particles can get through. Spectra have a write up on the subject but it must all be well documented in the filters industry. If you are in a hard water area you might benefit from changing your 20 micron filter over for a polyphosphate crystal unit. I have a thread running on the subject, search for polyphosphate and it will turn up.
 
BTW if you have a silver filter it might be a good idea to draw off a filter-bowl full of water first whenever water has been standing in it for more than a few hours. Heavy metal in your water can have an adverse effect on your brain and make you behave quite oddly.
 
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Heavy metal in your water can have an adverse effect on your brain and make you behave quite oddly.

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That'll be the reason then! /forums/images/graemlins/smile.gif
 
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No way, its 30 euros a pop in the local bars ! /forums/images/graemlins/blush.gif

[/ QUOTE ]I can help. Have a look at my website (see my email address for the domain name - the website is in the root directory)
 
Some quick points about filtering tapwater:-

Sand and dust Needs 20 micron
Rust particles Needs 20 micron
Plant materials Needs 5 micron
Microbes Need 0.1 micron

Dissolved toxins Very difficult to impossible. Activated charcoal is the most common.

There is no point in adding a 20 micron pre-filter to the 5 micron one with tapwater. The 5 micron will do both.

Silver in filter elements can cause high levels of dissolved silver in the drinking water.

The General Ecology is 0.1 micron and activated charcoal made up as an immensely strong element that will not rupture with pressure. You can continue to use it until the flow slows or the taste degrades (i.e. the activated charcoal becomes saturated with 'odour'). If you were using the activated charcoal to remove a specific toxin you'd need to carry out weekly tests.
 
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