Eshopps Eclipse S - trickling noise from weir

[mpatterson42]

I bought a tank with an Eshopps Eclipse S already installed. Both the main drain and the emergency have a gate valve, the emergency gate is fully open and the main drain is open enough to allow a small trickle into the emergency.

When I first set it up there was a pretty loud water noise because the top of the overflow pipe was at about the same height as the the transfer bulkhead. I used a PVC coupling to increase the height of the emergency pipe and this helped quite a bit but there's still a very audible trickling sound coming from when the water enters the weir in the internal box and drops down. The sound is still there even if the water level is not high enough to enter the emergency pipe, so it's definitely coming from the internal box.

The bottom of the weir is still higher than the overflow pipe and there's really no more room to increase the height of the overflow pipe. Is there anything else I can try?

I did put a filter pad into the internal box and this eliminated the noise, but then I realized that I was probably preventing most of the debris from the tank from going down into my sump which is kind of the point of the sump.

I do have a DC pump, but it's already only running at 50%.

Let me know if anyone has any other ideas.

 

[Mr. Mojo Rising]

Turn the pump down a little more. Or if you have a valve on the return line, turn that a bit. The water is going down too fast creating that sound, the water should be leveled with the drain pipe to go down the drain very slightly, not too fast like that.

 

[mpatterson42]

You're right, the flow was way too much. When I first started researching, somehow I got the number 10x for turnover between the display tank and the sump, but this information is outdated (and seems to refer more to the powerheads within the display tank). It seems most people look for a 2x to 5x turnover rate. The pump is a Jebao DCP-3500 (which equates to 924GPH). I thought having it at 50% would be about the 10x turnover, but again, wrong (or out of date) information. The Eshopps Eclipse S is only rated for 600GPH so I was pretty much at its maximum.

I ended up dropping the pump down to 40%, and then adjusting the gate valve on the return pump to restrict the flow more. I made adjustments on both the return gate valve and the overflow gate valve and this seems to have helped the sound a lot. I think the trickling noise I am hearing now is coming from my sump now, so I'll continue to tweak things!

Thanks for the help.

 

[jdpeters]

I bought a tank with an Eshopps Eclipse S already installed. Both the main drain and the emergency have a gate valve, the emergency gate is fully open and the main drain is open enough to allow a small trickle into the emergency.

When I first set it up there was a pretty loud water noise because the top of the overflow pipe was at about the same height as the the transfer bulkhead. I used a PVC coupling to increase the height of the emergency pipe and this helped quite a bit but there's still a very audible trickling sound coming from when the water enters the weir in the internal box and drops down. The sound is still there even if the water level is not high enough to enter the emergency pipe, so it's definitely coming from the internal box.

The bottom of the weir is still higher than the overflow pipe and there's really no more room to increase the height of the overflow pipe. Is there anything else I can try?

I did put a filter pad into the internal box and this eliminated the noise, but then I realized that I was probably preventing most of the debris from the tank from going down into my sump which is kind of the point of the sump.

I do have a DC pump, but it's already only running at 50%.

Let me know if anyone has any other ideas.

This overflow box is the bane of my existence, I have it tuned properly but the internal weir is sooo loud

 

[mpatterson42]

This overflow box is the bane of my existence, I have it tuned properly but the internal weir is sooo loud

Yeah I eventually got it quiet, but I had to extend the overflow pipe above the bulkhead and also turn down the speed of my return pump a lot. But whenever I do a water change there's a very audible gurgling noise for several hours afterwards. I used to try to fiddle with things to make it go away but I learned that if I just let it be for a while it will get quiet again.

 

[jdpeters]

Yeah I eventually got it quiet, but I had to extend the overflow pipe above the bulkhead and also turn down the speed of my return pump a lot. But whenever I do a water change there's a very audible gurgling noise for several hours afterwards. I used to try to fiddle with things to make it go away but I learned that if I just let it be for a while it will get quiet again.

If you extended the overflow pipe does that make you nervous at all about it over flowing?

 

[mpatterson42]

If you extended the overflow pipe does that make you nervous at all about it over flowing?

A little, yes! But if both pipes were clogged and my return pump moved as much water as it could to the display tank I think it would still overflow with the standard height.

 

[riche]

I’m dealing with this same issue, I just set up my tank with the M version of this overflow.

What if I put a piece of pvc in the drain hole and then attach a couple elbows to get the drain to be like a bean animal overflow?

 

[jdpeters]

I’m dealing with this same issue, I just set up my tank with the M version of this overflow.

What if I put a piece of pvc in the drain hole and then attach a couple elbows to get the drain to be like a bean animal overflow?

No idea but I hate this over flow trickle noise

 

[ruxsir]

Dealing with this right now. Internal box trickle is loud enough to bother me. Have my jebao dcp3500 running at 30%? It’s only running at 9 watts. Water line dropped below tank trim to so water falling isn’t at high and still getting noise. Thinking of adding a sponge inside the internal box. Thoughts?

 

[mpatterson42]

How high is the overflow pipe compared to the fall height of the weir? I found raising that helped. Also, my return pump has a gate valve, so I turned it down even a bit more with that.

I tried a sponge in the internal box but found that I was getting a lot of nasty stuff on the surface of my aquarium water (since the sponge was preventing some stuff from getting past the weir).

 

[ruxsir]

How high is the overflow pipe compared to the fall height of the weir? I found raising that helped. Also, my return pump has a gate valve, so I turned it down even a bit more with that.

I tried a sponge in the internal box but found that I was getting a lot of nasty stuff on the surface of my aquarium water (since the sponge was preventing some stuff from getting past the weir).

The transfer bulkhead is completely submerged. The emergency standpipe is probably about an inch higher than the top of the bulkhead. Water level inside tank maybe is dropping an inch at max. Can’t really change that much, its design of the overflow box, I think the external box is too low for the internal box. Pump already at lowest setting.