This is the website that sells the top off kit that comes with everything needed for a basic top off set up except the pump, the hose, and the extension cord. http://www.premiumaquatics.com/Merc...Product_Code=AH-PREM-ATO&Category_Code=Dosers .
They also sell the float switches individually here http://www.aquahub.com/store/floatswitches.html I bought the i-float switches for $6.49.
You can also buy float switches locally at Grainger but they are a little more expensive. The ralays and power supplies can be picked up at most electronics stores like Radioshack or Sesco or Electronics Supply. The relay just needs to be double pole double throw with a 12VDC coil and rated to switch 120VAC at whatever amperage you need. Most small pumps draw less than 1.5 amps.
This is the link that has the instructions for the ATO Kit http://www.aquahub.com/store/diygaquarium.html . It is very simplyfied but if anyone has any questions just let me know.
They also sell the float switches individually here http://www.aquahub.com/store/floatswitches.html I bought the i-float switches for $6.49.
You can also buy float switches locally at Grainger but they are a little more expensive. The ralays and power supplies can be picked up at most electronics stores like Radioshack or Sesco or Electronics Supply. The relay just needs to be double pole double throw with a 12VDC coil and rated to switch 120VAC at whatever amperage you need. Most small pumps draw less than 1.5 amps.
This is the link that has the instructions for the ATO Kit http://www.aquahub.com/store/diygaquarium.html . It is very simplyfied but if anyone has any questions just let me know.
