Auto Water Change Pump "Group" Buy

[RTMA]

ATO line is the power line that plugs into the ATO port of my RKE.

Open

This is what the relay looks like:

http://www.radioshack.com/product/index.jsp?productId=2049721

I also used a large project box and some cable clamps as well as a cheap outdoor power cord to get the plugs and cable, I also bought some plug ends at home depot to connect the pumps.

I should also note that I do a 2 gallon change at one time daily - Its a 220 gallon system roughly so swapping 2 gallons of cold saltwater into the sump has little effect on the overall temp of the tank - especially as it is running when I dump the 2 gallons in.

Also need to note that I can drain 2 gallons of salt water from my sump without making my return pump run dry. Anything more than 3 gallons would cause the return pump to suck a little bit of air. The return pump has an elbow that forces it to suck from the bottom of the sump too.

 

[dudemeister]

The beauty of the dual pump is eliminating the need for float switches. But this is indeed a nifty setup. What kind of floats do you use? I am always afraid of them getting gummed up...

 

[RTMA]

the same float I've used for ages, hooks up to the RKE. Infact, I just got a new kit and need to hook that up.

 

[RTMA]

Mike - Do you know if you can disable a port with an APEX when the drain kicks on? I kno wwith my reefkeeper I can set an alarm to disable the ATO port when teh drain kicks on.

Can you do this with an APEX?

 

[dudemeister]

If I follow you, yes. You can put in a statement that if a certain switch or outlet is on then off. Shouldn't be too hard.