[jlschweda1971]

Looking for some advice. I bought a Marineland 75g reef ready tank earlier this year. I thought it should be able to handle a 700gph pump. I've tried an Eheim 1260, and just now a Sicce 2.0 (568gph) and both of them run the return section dry. I've got the valve wide open on the overflow, and I know I could put a valve on the return. However, I was hoping to have the pump wide open and control the valve on the overflow accordingly.

I'm new to the herbie overflow and am curious if I'm doing something wrong or am missing something??? It's a 1in pvc pipe in the overflow.

Any help is greatly appreciated!!!

 

[Commerce Reefer]

Did you purchase a premade sump or is it DIY?? Without any pictures of your system it's hard to say but if water is going down overflow then maybe sump walls are too high or you need to add more water to the system.

 

[on the spot]

...I'm new to the herbie overflow and am curious if I'm doing something wrong or am missing something??? It's a 1in pvc pipe in the overflow.

In the overflow, how much water was over the siphon line? How much distance is there from the siphon plumbing and the emergency standpipe? did the water reach the top of the emergency standpipe?

was the valve on the siphon pipe open?

How much water does the return section of the sump hold? measure just from the top of the baffle, L x W x H /231 will answer that. How many gallons of extra space does your sump hold?

It's likely, without more information, that you just need to add more water. I'd want a better understanding of the plumbing, maybe pictures of the drain and sump(drawings are fine as long as the measurements are true) and the answers to the questions asked before suggesting that though.

 

[GreatLakeReefer]

Try Teeing in a manifold to divert water back into the sump.. may help if you dont want to put a valve to slow down your return pump (im assuming you already have it on the lowest setting)..

 

[zygote2k]

Open up main drain all the way. Make sure there***8217;s enough water in the sump.
I***8217;m assuming you have a gate valve and check valve on the sump?
Fill sump with pump off to appropriate level, then turn on pump.
Start closing the drain valve until water is just below emergency drain.
Gate valves are needed here as they allow fine adjustments. Ball valves are too coarse and shouldn***8217;t be used here.