Will atmospheric storage tank for water cause microbe problem?
enigl at aol.com
Fri Sep 6 15:01:41 EST 1996
In article <drice.56.322C3FFD at vines.colostate.edu>,
drice at vines.colostate.edu (Doug Rice) writes:
> Circulating water stays cleaner than stagnant water. UV will
>not work since the light will not penetrate very far into the water of a
>tank. Ozone bubbled into the tank would be the best option. This can be
>expensive and dangerous (high electricity) but will keep the tank and the
>distribution lines relatively free of bacterial contamination.
I agree UV will not work. Ozone has a lot of problems too. Since the
system is small, why not just heat the storage tank with a gas fired hot
water heater or steam heat exchanger. (I once used a domestic hot water
heater from SEARS and a CPVC recirculation loop.)
Have you ever tried to culture anything out of your own hot water pipes at
home? I have. Even using R2A, membrane filters,and 7 days at room temp.
I got <1 CFU/1000 mL. And, that was only at 140F. The source water
contains chlorine and so should yours.
Davin C. Enigl, MS-MEAS, President-Microbiologist
HACCP Validations-sm Hazard Analysis and Critical Control Points for the
Food, Cosmetic, Pharmaceutical, and Nutritional Supplement Industry
Voice: (916) 989-8264, Fax: (916) 989-8205, Pager: (714) 725-7695
9040 Erle Blunden Way
Fair Oaks, CA 95628
September 5, 1996
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