diy overflow

[danny]

Spoot definitely gets a gold star

The ability to create a venturi effect is going to depend on the flow rate through the overflow. Mine definitely won't support it. I am sure that drilling a hole in the tanks return for the air line will probably do it.

i think you may need a non return valve on the tanks return to stop back syphon on outage????

 

[soggysandwich]

i built one but how do i stop it from leaning to the one side? it seems that no one else is having this problem, so am i doing something wrong?

 

[spoot]

There isn't anything specific that would make it do that. Is the top sitting on the rim of the tank or is it "floating"?

 

[duke33]

learning everyday

 

[AiR foRc3 wUnZ]

Suction cups!

 

[CHOMPERS]

Spoot tube, I like it



I think the airline needs to be submerged in the event of a power outage, otherwise the siphon will be lost and the overflow will drain. Unless that's not what you are referring to

I was thinking of keeping the check valve in place so that drainage won't be a problem. They offer some resistance to flow though.

 

[CHOMPERS]

i built one but how do i stop it from leaning to the one side? it seems that no one else is having this problem, so am i doing something wrong?

My plumbing is all rigid and keeps everything in place. Have a look at where you can strap down your plumbing (maybe your stand) to give it support. If you can post a picture, maybe we can come up with some ideas.

 

[spoot]

I was thinking of keeping the check valve in place so that drainage won't be a problem. They offer some resistance to flow though.

Ah, gotcha. I think that may work. I'm pretty scared to rely on a checkvavle cuz my overflow will be for a FOWLR. And salt gets into everything.

Not sure when I'll have time to make one though, so the testing i guess will have to wait a bit.

 

[aropal]

Spoot definitely gets a gold star

The ability to create a venturi effect is going to depend on the flow rate through the overflow. Mine definitely won't support it. I am sure that drilling a hole in the tanks return for the air line will probably do it.

Would it not be better to attach the venturi to the return hose FROM the sump. You could narrow the hose to increase the flow rate at the point of the attachment of the venturi.

 

[spoot]

Would it not be better to attach the venturi to the return hose FROM the sump. You could narrow the hose to increase the flow rate at the point of the attachment of the venturi.

The problem is that during a power outage, the return hose will drain into the sump, and then siphon would be lost.