Contemplating some type of auto water changer
My 125 shares a wall with our downstairs powder room, so I am thinking about setting up some sort of water changing system. I'm not sure of the correct terminology as it wouldn't really be an auto water changer or an auto top off system. My tank is drilled with 4 holes in the bottom (2 intakes and 2 outputs from my canisters). I already have a drain, that I connect a hose to plumbed off of one of the intakes. I think I could very easily tie this into the drain from the sink in the powder room. What I am not sure about is how to get water back into the tank. I don't want to have to you any additional equipment (i.e. pumps, etc) or a bunch of ugly plumbing (tank is in the living room, and is surrounded by walk ways on 3 sides) what are my options? Right now I hook the same hose up to the sink using a waterbed fill/drain kit, which is kind of a pain. I'd love to hear of any ideas you all have.
Side thought: If I can figure out an easy way to get water into the tank, maybe I could run a constant trickle and modify one of the drains to reach the top of the tank, so that a little water is always draining. Is that a feasible solution?