The Planted Tank Forum - View Single Post - Wasserpests new airpump microdoser
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post #15 of (permalink) Old 11-06-2007, 09:52 PM Thread Starter
Are these real?
Wasserpest's Avatar
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Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,352
A picture is worth a bunch of words, so here is one of my currently working prototype.

It has been dosing my 100gal tank for the last 3 or 4 weeks. Weak points are the check valves. The one on top dries up a little and it takes quite some pump strength to unglue it.

I really want to try one of the other check valves, but I can't get them without incurring a $10 shipping charge, and that goes against my frugal nature. If I knew they would work I would buy a bunch to distribute the shipping cost, but I don't know that.
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