"Marc Levenson" wrote in message
...
| If you want gravity fed, the easiest thing is to get a container
that you can
| put up on a stand next to your tank. Drill a hole near the base,
and insert
| some type of grommet or bulkhead that allows you to affix some 1/4"
tubing
| without leaking. Home Depot sells that gizmo for evaporative water
coolers.
|
| Run the tubing to your sump, and affix a float valve in your sump.
As
| eveaporation takes place, the valve will drop and allow water to
gravity feed
| into your sump, and the float lifts back up to seal the line until
needed again.
|
| Marc
|

I'd really like to stay away from any more electrical components. I'm
already worried about how much I'm dragging out of this outlet as it
is, (return, tanklights, fuge lights, powerheads, skimmer, heaters)
and like I said, I don't want to buy much. Most of the options I'm
finding require installation of yet another water pump, or electric
valves.

I found this:
http://www-2.cs.cmu.edu/~cap/raid/to...hon/index.html

and I think I'm going to puzzle this one out. The bloody thing has
the description in the format of a bleeding IRC session, nut it's the
only thing that meets my apparently unrealistic criterion.

tyvm marc, john.


billy