Wow... OldSanClem, hello there!
Hello Stinky. Hello rhizome.

SanClem, just saw this for the first time.
Very interested in this.
When I used the X10 system, it definitely wasn't running "perfect".
Sometimes it would skip a beat.
It would fail to turn ON something... or fail to turn OFF another thing.
That could/would turn out into disaster.

I'm looking at this site for the RelayRunner.

And I see they have a hardware section.

Would you mind if we run over a basic setup here?
Say we already have the computer and the software installed.
What would be needed?


I see a PC Printer Port Relay Board CK1601, which I believe is the one you use... yes? No?
Do you have an old PC lying around the house which absolutely no one wants? Then you can convert it into a dedicated controller. Communicate with the real world via the parallel printer port on your PC. Simply connect printer cable from your computer to the connector on relay board. There are 8 relays each capable of switching 12VDC/10A or 240VAC/5A. Each relay has an LED to indicate when it is operated.
So,... sorry, but I'm lost.
How do you connect, say a 1,000W ballast to the board?
Is there an additional relay box? Or do the 110volts go 'into' that card inside the computer?
I see the card is 'capable of switching' 240VAC/5A.
Still I'm lost.

OldSanClem, thanks man. Much appreciated.
Much interested in taking a deeper look at this.

One final question:::
What board do you use for 'feedback'?
You say you record pH, ppm, etc. ...
With what? How do you connect the pH meter (which one?) to the computer?

Well, there... a barage of questions.
Thanks again.

Best to all,

-turtle420
.