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Posted by Li on February 8, 2008, 6:52 pm
Not knowing how your existing system is set-up, your main problem will be to
regulate the chlorine to the flow. Generally with tablets, the higher the
flow, the faster they dissolve. If your system does not batch discharge, you
will want to regulate the chlorine so that more (or rather faster drop rate)
is injected during peak flow periods in order to achieve proper disinfection
(and odor control). You want to keep the chlorine at about 1.0 PPM to 4.0
PPM to achieve disinfection (closer to 1.0 PPM is better). You need to base
your usage (volume required) calculation on flow and usage as opposed to an
average of 1 gallon/month.
The other problem you have to deal with is that liquid chlorine injection
systems do have a tendancy to clog under certain circumstances.
You will still have to conduct maintainence of the system on a regular
basis.
Don't know any plans offhand but try googling it might just work.
>I live in Texas where septic systems are pretty well governed. They
> require that the aerator systems be adequately chlorinated... which I
> am grateful I don't have to smell my neighbors discharge. However, I
> am becoming annoyed at spending $180+ every year for chlorine tablets
> when I understand liquid bleach dispensers are also allowed by law.
> However, these dispensers typically run $300 and look like PVC pipes I
> could get from my local home supply stores. I want to try and do it
> myself and save the $300 equipment/installation cost and start using
> household bleach.
>
> Question 1) Can anyone point me to plans how to build my own?
> Question 2) From my research, it appears ~1 gallon/month is the
> typical bleach usage. Does this sound correct to people who already
> use/know about bleach dispensers?
> Question 3) Absent any plans, and believing the usage is ~1 gallon/
> month, I believe I could cap a PVC pipe to hold some bleach and
> integrate an IV drip dispenser. According to my math (which I won't
> go into here unless requested), I figure I can set the IV drip on a 60
> drop/ml to 1 drop every 11.4 seconds to dispense ~1 gallon of bleach/
> month. By placing this dispenser between my two tanks (where I
> currently drop the chlorine tablets) I expect I would achieve
> approximately the same mixing effect as I do with tablets. The end
> effect of this is for <$20 I could build my dispenser and start using
> household bleach saving an additional $150+ each year.
>
> Thoughts/Corrections/Answers?
>
> Thanks in advance!
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