Water level switch... design needed

[DIY]

Hi Bad Inferno,

have you had any luck with a water level switch design?

[Bad Inferno]

Yeah...I got two off ebay US5.00 each and awit delivery.
http://cgi.ebay.com.au/ws/eBayISAPI....e=STRK:MEWN:IT

Plans have changed alittle as I have not found a real solution for a solenoid besides 240VAC.

I was going to gravity feed fresh water into the sump and control a solenoid however I think I will just use a small powerhead in the water reservoir and pump it into the sump. Have the water level switch turn on a 12VDC relay with contacts rated for 240VAC.

To empty use another powerhead (on a simple 240VAC timer) in the sump and just pump it out for 1 minute. Position the powerhead in the sump so that it does not empty the sump.

I was talking to you about the FAB PLC I think....Better to use a Direct Logics plc as this has RTD inputs although price is starting to increase dramatically and has just become a dream
http://web5.automationdirect.com/adc...c_06/PLC_Units

This PLC has comms...Modbus over RS485 which you could connect to your PC