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Old 08-07-2011, 13:37   #1
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Join Date: Jul 2007
Location: Potomac Shores, VA USA
Boat: Formosa 51 Aft Cockpit Ketch - "Beausoleil"
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Spectra Bio-Guard Experiences ?

Anyone here have any before/after experience with Spectra's Bio-Guard system to treat raw water systems for A/C and refrigeration (reduce the growth of algae, barnacles, etc.)?

Does it perform better than a simple short length of copper pipe placed in the basket of a raw water strainer? What about a fat copper pipe with lots of holes drilled in it (exposing more Cu surface area to the water)?
Cap'n Jon (KB1HTW)
S/V Beausoleil -1979 Formosa 51 Ketch
"If it's gonna happen, it's gonna happen out there." - Captain Ron
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Old 09-08-2011, 03:26   #2
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Location: Washington, DC
Boat: Orana 44
Posts: 164
Re: Spectra Bio-Guard Experiences?

Hi -- Not sure if you mean their Z-Brane system, deployed on their watermakers ... if so, very favorable on my Cape Horn ... I have left the system sit with just a Z-Brane for a month or more, and no problem ... very low amperage, very high voltage ...

Sorry if off point.


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Got a head full of lightning, and a hat full of rain."
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Old 09-08-2011, 06:33   #3
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Location: Chesapeake Bay
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Re: Spectra Bio-Guard Experiences?

After three years of annual back-flushing and some acid washing to keep my two A/C units running I added a Bio-Guard. I got two-and-a-half years before one unit started to overheat and I flushed both units again. I'm pretty happy with the improvement in maintenance cycle. I haven't had to replace the catalytic element yet.

I can't speak to the alternatives you suggested.

The fine people at Annapolis CruisAir suggested putting swimming pool type chlorine tabs in the stainer.
S/V Auspicious
SSCA Annapolis Cruising Station
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