Preventing Algae or Mold in Firewater or Reserve Holding Tanks
By: Larry Couture
Reserve holding tank water is required by law in well
water zip codes in known forest fire areas. These holding tanks have
also become standard new construction equipment in Texas, Florida,
Georgia and areas where well recovery or drought conditions require
a 2,000 10,000 gallon reserve water supply.
The problem with many of these tanks is that they become a good science
fair project where there is air and water, life is formed.
Assuming the sourcewater is free from coliform or protozoa bacteria
the most common issues in holding tanks relate to mold and simple
plant algae growing in the water. RV, diesel pusher, houseboat and
yacht owners have been fighting these issues with smaller tanks where
odors and turbidity alert them sooner to the issues.
A NASA inspired approach to holding tank water dating back to the
1960s and the Apollo program has been available from ECOsmarte
since the mid 1990s to address these issues.
When man went to the moon on three week Apollo missions there
was also an unsubstantiated fear of moon microbes, said Michael
Dewar of Minnesota based manufacturer ECOsmarte. Honeywell here
in Mpls. developed ionization which is healthy on humans and deadly
to single cells to combat the potential moon microbes.
Dewar added that the original technology was vacuum tube based and
sold for approximately $1 million in 1968 dollars per lunar mission.
Today the technology is semi-processor and chip based in a six by
eight inch box and can be added to conventional water treatment equipment
for as little as $3,000 in current money.
The equipment consists of an electronic box and an anode cell containing
copper and titanium platinum anodes.
The copper ions are released at a very low level by electrolysis to
control microbe growth. The copper ion has been determined effective
by both the National Institute of Health and the FDA. Both organizations
indicate enhanced kill rates with the presence of H2O2 -- Micro bubble
oxygenation is accomplished by the titanium platinum anodes to address
both odors and heavy metals. The combined process, ionization and
oxygenation softens the minerals, not the water itself and usually
eliminates the need for a water softener.
Softened minerals include the calcium and magnesium, with the iron
and manganese typically filtered. The filtered minerals require a
backwash regeneration using well water only, not salt or chemicals.
Calcium is converted from the hard carbonate form CACO3, to the softer
bicarbonate form CA2H(CO3).