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Old 12-16-2004, 11:19 AM   #1
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My plan for an auto-topoff system

Ran across this: http://www.reefkeeping.com/issues/2002-03/jg/ and thought that was exactly what I want in my huge sump. I like all of the backups.

So, I ordered the float switches from: http://www.floatswitches.net/floatswitch.html and I figured 3 for $21 shipped was pretty good.

I'm going to use a 19 gal rubbermaid tub I have as the resivour, I'll post my pix as I do it when the switches come in.
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Old 12-16-2004, 05:27 PM   #2
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I use that type of FS and they work well. You just need to clean them once or twice a year. I have a differnt set up then you posted. Looks like it should work. keep us posted.
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Old 12-16-2004, 09:41 PM   #3
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I was thinking making one out of scratch, with a simple float switch like the one posted. Then out of a battery powered squirt gun modified to fit on a gallon jug of distilled water when the float activates, the pump from the squirt gun pumps water up to the tank Let me know what you guys think. I will post some pics when it is done.
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Old 12-16-2004, 11:38 PM   #4
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I got an email from the switch guy and he sent them out today...I'll take next day service.
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Old 12-17-2004, 03:15 AM   #5
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Wiring up those float switches is a bit more complex than you may at first think. What you CANNOT do is simply run the current of the pump through the float switch.

The float switch needs to run on a low voltage power triggering a relay that switches the higher voltage of the pump.

It's a safety thing.

I was unable to read the instructions you referred to. Hopefully, that is what they suggested.
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Old 12-17-2004, 09:33 AM   #6
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Solid-state Relay NO with a 3 - 32 VDC coil and a 120 VAC @ 3 amps
Full wave bridge rectifier
2 K ohm 1/2 watt resister
Three wire power cord
Float switch Grainger 2A554, McMaster 50195K65
Duplex outlet
External duplex outlet box

The reason the link didn't work is because the software thinks 03 is always an acronym and messes up the link. Copy and paste the entire thing and it works.
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Old 12-17-2004, 09:50 AM   #7
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Send a message via ICQ to fishfreek Send a message via AIM to fishfreek Send a message via MSN to fishfreek Send a message via Yahoo to fishfreek
If you wrap the URL in the URL bbcode the acronym feature doent break the URL.
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Old 12-17-2004, 09:19 PM   #8
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I see that...good man.
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Old 12-28-2004, 07:30 PM   #9
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Got the stuff over the last few days, going to build on Thursday...stay tuned!
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Old 12-28-2004, 11:32 PM   #10
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I use those same switches and just recently added the relay. Less than $10 in parts and once I found a easy to read diagram, I was set. I am currently using a 2 float set up. One is the main switch for the pump in the top off reservoir and the other is a water too high back up switch to kill the pump.
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