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Old 02-04-2009, 05:50 PM   #1
Kaiser
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Default programmable interval timer?

I’d like to put the aeration of my starters on an interval timer in order to cut down on foaming (I don’t like Fermcap S, so don’t suggest that as an alternative ) but have a hard time finding a device suitable to switch 120V on a programmable interval. All I can find are programmable timers where you can program the time of the day they should go on/off and maybe a countdown timer. But that countdown timer cannot be run on a repeat mode.

The unit should cost less than $20.

Any ideas/hints? I’m not in the mood of building one myself at this time.

Kai
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Old 02-04-2009, 06:09 PM   #2
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Off the top of my head, you might check out timers meant for hydroponic/ebb & flood systems (that's just the first example I found with google).

Out of curiosity, why don't you like Fermcap S?

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Old 02-04-2009, 06:12 PM   #3
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I believe the Kaiser prefers the Reininhisboat.

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Old 02-04-2009, 07:07 PM   #4
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I believe the Kaiser prefers the Reininhisboat.


Yes. Not that I always follow it, but I think this stuff is the easy way out and can easily be avoided. But I have no other argument against it so I’m not forcing my beliefs onto others.

I checked the page and they have what I want but for $170 L

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Old 02-04-2009, 07:34 PM   #5
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Would this help? It says it has 48 on/off settings per day, so it sounds like you could turn it on/off in intervals as small as 30 minutes?

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Old 02-04-2009, 08:03 PM   #6
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Mensh,
No. That's the type I keep finding. Not only would changing the cycle time be a lot of work but I would onlt be able to go in 15 min increments. I'd like to program a cycle time of 5 min and keep the pump on or 1 of these 5 min. And then be able to easily change how long the pump stays on.

Kai

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Old 02-04-2009, 08:07 PM   #7
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Quote:
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Mensh,
No. That's the type I keep finding. Not only would changing the cycle time be a lot of work but I would onlt be able to go in 15 min increments. I'd like to program a cycle time of 5 min and keep the pump on or 1 of these 5 min. And then be able to easily change how long the pump stays on.

Kai
Plug one into another one? Wait, that doesn't work.
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Old 02-04-2009, 08:36 PM   #8
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Have you considered a stirplate and a foam plug? There's pretty constant aeration without hightech complication

Cheers

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Old 02-04-2009, 08:47 PM   #9
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Another option that would be a little more work (and involve a computer) is some sort of X10 protocol based equipment (or other home automation protocol like Insteon). You could easily program the computer for any sort of on/off intervals you wanted. It might cost a bit more than $20, but definitely not the $170 you found in my previous link.

Again, it would require a computer, but that could be anywhere in the house as the home automation gizmos use power line and/or RF communication.

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Old 02-04-2009, 09:11 PM   #10
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Quote:
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Mensh,
No. That's the type I keep finding. Not only would changing the cycle time be a lot of work but I would onlt be able to go in 15 min increments. I'd like to program a cycle time of 5 min and keep the pump on or 1 of these 5 min. And then be able to easily change how long the pump stays on.

Kai
I can't believe it... you of all people to misspell my name!
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