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Re: [APD] RE: Timers
It's the slip mechanisms in the AC -motor power pumps that
tke the beating with repeated on/off cycling. But ramping
up the current can overheat the coils if the rotor doesn't
spin right away. Not the same problem if the pump runs with
a universal motor (although most I've seen have AC motors,
especially if they are submersible, and probably not a
problem with misters.
--- Sandra Derrick <mygenericemailname at yahoo_com> wrote:
> There are many different types of "strip" timers
> (designed to switch several things off and on) on the
> market for reef applications (wave making), any of
> these would be fine for your 20 minute intervals and
> some of the better ones might even protect to some
> degree.Since timers are often quite hard on expensive
> pumps, and because most do not do well long term w/
> shutting on and off as they are designed to run
> continuously, some timers have "ramp up" features that
> slowly turn on the juice. Try checking the archives at
> any reef site (reefcentral springs to mind) for info
> on brands and where to get them if these would work
> for what you have in mind.
> Hope this helps,
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