Automated water changes

[oingbingboing]

I was thinking of maybe an automated python style device, which connects permanently to the cold water line (under the sink), and the sink drain. The device would use electronically controlled valves. Then the tubing from the device would go to the tank. A water change cycle would consist of the drain valve opening then water source valve opening to siphon water from the tank. Then after a predetermined period the drain valve closes, and the source water is routed to the tank. I guess there would have to be a water level switch in the tank to tell the controller when to shut off the incoming water.

 

[WaynesWorld]

I guess there would have to be a water level switch in the tank to tell the controller when to shut off the incoming water.

Or use a stand pipe / bulkhead.

-Wayne

 

[oingbingboing]

With a standpipe Id route the standpipe back to the sink drain?

 

[oingbingboing]

Another question. Do you have any plans for building a DIY dosing pump? It doesnt seem like it should be too complicated to build one.

 

[WaynesWorld]

Here is my suggestion. Buy one of these: http://www.dripirrigation.com/cgi-b...ges/auto/c001.htm?L+drip1+vekc2944+1057740547

Drill your tank and install a bulkhead / standpipe. Route the drain from the standpipe to your sink drain. (Gravity) The standpipe is slip fit and adjustable.

I would recommend installing a house filter with a carbon block under the sink.

-Wayne

 

[oingbingboing]

If I use gravity feed overflow then there would be no need to siphon water from the tank, just add new water and whatever overflows overflows to the drain. I dont think Ill be able to do a gravity drain.

 

[WaynesWorld]

If your tank is above the sink drain it will work by gravity.

If your tank is lower than your sink drain, then you will ned a vat and sump pump.

Check here for dosing pump

http://www.kingvinnie.com/aquaria/diy/links_page.asp?cat=51

-Wayne