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thanks for your response Lih, I have recently come across an algae control technology which uses an ultrasonic wave emitter that breaks down the algae. algacontrol.us web site has intorduced it,I need to find out more about the effectivity of this equipment and wondering if anyone experienced in...

I am working on a Marina extension Project and disscussing the possibility of running long canals from the current marina area to give more boat access to residents. the water in the canals are not recirculating and since here in northern california we have hot summer days the high water...