ac7av
Bring on the FISH!
I have had my display tank down for a while now trying to get it into a configuration that I will be able to live with for a long time. In other words not skimping on things that are important to the life that may be in the tank and the enjoyment of looking at it, also very important keeping the water in the system and off the floor. I have learned a ton of information on RF and wanted to get things done in a manor that I should have, could have and would have done if I even had clue about what I was trying to do or needed to do. I thought I knew but reading about it doesn’t even come close to what experience has taught me. One thing I have not seen much mention about is water back flowing into the sump threw the return pump plumbing. My original configuration had never had any problem with a siphon because the water was flowing into the tank at the water surface. With the new system I have 4 nozzles returning the water into the tank that are adjustable as far as the direction of the water flow but they will be 6 inches give or take under the water surface. The question is what are the precautions that you use to prevent the water flowing back into the sump threw the return system during a power outage or servicing the pumps? I looked at some one way valves at the hardware store but I just question how safe and reliable they are when critters could be growing in the valve and you would not know about it, that could stop it from sealing all the way off. A small tube off the top of the manifold feeding back into the surface of the tank but what if it got plugged with something and would it let enough air into the manifold to brake the siphon? I need some idea that is going to work 100 percent of the time without worrying about things like that, what do you do for this?