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Old 06-28-2009, 01:39 PM   #56 (permalink)
lovingHDTV
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Quote:
Originally Posted by Wasserpest View Post
You should have looked up the link in the original post...

All other irrigation timers only allow for ONE valve open at a time. This one does two, which should be sufficient for most situations. You don't have to do everything at once... Dose micros after lights out... Macros before lights on... etc.

In order to have six valves open at the same time, the irrigation controller would need a larger power supply. For irrigation purposes, usually you don't want more than one circuit running at the same time, otherwise the water pressure might go down. In other words, two valves open simultaneously is probably an exception with these sort of devices.
Yeah I went and re-read everything. What I'm trying to do is control low lights, high lights, CO2. So I need three relays at once. For now I just ganged two relays together and have just "lights" and reduced their total on time, and CO2.

I don't dose ferts or do automated water changes.

I looked around for controllers that do more simultaneous relays (i.e. 4), but they are like $250

So far it works as advertised so I'll use it until I find or make something that allows me to use three relays simultaneously.

thanks,
dave
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