300 with 2 fx5’s

[TheWolfman]

Im going to say that the flooding of the sump was due to back syphon from the return on power outage. This happens when the return is not placed above the water level. When power is cut the return should only let the water inside the plumbing return to to the sump. If the return is slightly below the water level it will syphon the display tank o the lowest point of the return output. This can be fixed by plumbing the return over the top of the tank and drilling a small hole above the water level to create a syphon brake. You could also use the same concept and still use the bulkhead as well.

 

[peteagem]

Im going to say that the flooding of the sump was due to back syphon from the return on power outage. This happens when the return is not placed above the water level. When power is cut the return should only let the water inside the plumbing return to to the sump. If the return is slightly below the water level it will syphon the display tank o the lowest point of the return output. This can be fixed by plumbing the return over the top of the tank and drilling a small hole above the water level to create a syphon brake. You could also use the same concept and still use the bulkhead as well.

So does my return flow To the Sump need to be regulated? It should be the same amount of water running to the Sump that the pump is out putting right? until power is lost then I’ll have to account for a few gallons making it over the overflow. I’ll Also check the syphon break. Am I correct? the old owner said the hole was off and that was a problem when he lost power. Do you think having the media fully emerged is A downfall?

 

[lp85253]

Im going to say that the flooding of the sump was due to back syphon from the return on power outage. This happens when the return is not placed above the water level. When power is cut the return should only let the water inside the plumbing return to to the sump. If the return is slightly below the water level it will syphon the display tank o the lowest point of the return output. This can be fixed by plumbing the return over the top of the tank and drilling a small hole above the water level to create a syphon brake. You could also use the same concept and still use the bulkhead as well.

simple science .. it's amazing how many people don't pay attention ...even if you just pay attention when you do w/c's this concept should be obvious...

 

[TheWolfman]

So does my return flow To the Sump need to be regulated? It should be the same amount of water running to the Sump that the pump is out putting right? until power is lost then I’ll have to account for a few gallons making it over the overflow. I’ll Also check the syphon break. Am I correct? the old owner said the hole was off and that was a problem when he lost power. Do you think having the media fully emerged is A downfall?

Yes your logic is correct. You will need a gate valve to regulate the amount of water to get the overflow to be quite. You will need to use a stand pipe inside the overflow to set the waterline in it. The higher the stand pipe the less noise and water will go to the sump on power loss. The valve sets how fast the water leaves the overflow and makes the water that goes to the sump to be silent. Look into a durso stand pipe, that's what you will want to setup.

The Media is fine fully submerged. That's the easy tradition sump are setup.

 

[peteagem]

simple science .. it's amazing how many people don't pay attention ...even if you just pay attention when you do w/c's this concept should be obvious...

I’ve never had a Sump on a tank and i was trying to get basic tips online about set up and maintenance. On many videos they are regulating flow back to the SumpI wasn’t sure Why you would have to do that. I haven’t done a water change on a tank with a Sump and the previous owner hired someone to maintain the tank so information about the set up was limited. The owner had mentioned that the syphon break was not high enough. I was more interested in how more or less water Could ever reach my Sump if I’m constantly pumping the same amount of water out...
Is it for a tank that’s not drilled?

 

[peteagem]

Yes your logic is correct. You will need a gate valve to regulate the amount of water to get the overflow to be quite. You will need to use a stand pipe inside the overflow to set the waterline in it. The higher the stand pipe the less noise and water will go to the sump on power loss. The valve sets how fast the water leaves the overflow and makes the water that goes to the sump to be silent. Look into a durso stand pipe, that's what you will want to setup.

The Media is fine fully submerged. That's the easy tradition sump are setup.

The tank has a stand pipe it’s pvc with a few holes drilled in It near the water line and a Cylinder shaped sponge covering the holes. Thanks for the info.

 

[lp85253]

I’ve never had a Sump on a tank and i was trying to get basic tips online about set up and maintenance. On many videos they are regulating flow back to the SumpI wasn’t sure Why you would have to do that. I haven’t done a water change on a tank with a Sump and the previous owner hired someone to maintain the tank so information about the set up was limited. The owner had mentioned that the syphon break was not high enough. I was more interested in how more or less water Could ever reach my Sump if I’m constantly pumping the same amount of water out...
Is it for a tank that’s not drilled?

yep.. this really doesn't apply to your situation , other than in using common sense .. just don't leave the "out " pipe low enough to flood your room... if you are worried about gravel level waste (i'm generally not) get an hob or gravel vac...regulating gph is a thing , i can't comment because i haven't done it (no sumps)