Noisy bean animal drain

Rcollick · Sep 10, 2018

I recently set up a Innovative marine 75ext. I have 2 mp10qd on one side and a mp40 on the other. When my mp40 ramps up I seem to get a lot of noise rushing in to my overflow and it's really noisy. Is there any way to quiet it down. The 2 mp10s are in sync at 100% and ther mp40 at 75% anti sync. The return pump is a vectra m1 running about 33% 4 of the 12 dots lit up.

cwalton00 · Sep 10, 2018

Pictures of your setup would help. What are you controlling the main siphon with?

Rcollick · Sep 10, 2018

cwalton00 said:
Pictures of your setup would help. What are you controlling the main siphon with?

I will try and get a picture later tonight. I'm using a gate valve to control it. It's almost dead silent if I turn the flow down on the vortechs.

WVNed · Sep 10, 2018

If a flow pump in the tank is making the overflow noisy it must be pushing water against the weir. You cant aim a mp40 so you would have to move it until it stops.

Rcollick · Sep 10, 2018

WVNed said:
If a flow pump in the tank is making the overflow noisy it must be pushing water against the weir. You cant aim a mp40 so you would have to move it until it stops.

If I move it much lower it starts to kick up the sand. Left and right didn't seem to help either. I can't figure out what I'm doing wrong. I'm sure people are running more flow than I have. I haven't tried running a higher flow through the sump. Just wondering if that would help.

jgvergo · Sep 10, 2018

Is the noise coming from the bean animal plumbing or from water entering the overflow? If it's coming from the bean animal, is the surface agitation is enough to cause agitation in the overflow? That could possibly cause air to occasionally get into the full siphon. Just a guess. If so, WVNed's solution should help.

jgvergo · Sep 10, 2018

A video might really help us diagnose it.

Rcollick · Sep 10, 2018

jgvergo said:
A video might really help us diagnose it.

Video great idea. I will try to get one tonight or tomorrow. The noise is coming from the overflow weir.

jgvergo · Sep 10, 2018

Rcollick said:
Video great idea. I will try to get one tonight or tomorrow. The noise is coming from the overflow weir.

Then it's probably the fact that the surface of the water in your tank is agitated enough to cause uneven flow through the weir resulting in some noise. How deep is your tank?

miPapareef · Sep 10, 2018

I found that the noise from the waterfall over the weir is very sensitive to waves or a surface flow perpendicular to the weir. One improvement I did was raise the water level in the overflow and it helped reduce the noise, but I still get some wave noise. I have stop the pulsing waves and lower the gyre flow when we watch a movie to keep it quiet.

Rcollick · Sep 10, 2018

jgvergo said:
Then it's probably the fact that the surface of the water in your tank is agitated enough to cause uneven flow through the weir resulting in some noise. How deep is your tank?

Tank is 20 inches deep. I do have a crazy amount of surface agitation.

ScooterV · Sep 10, 2018

I'll join in on surface agitation noise. I have two MP60's and when they kick up I hear it. No difference in the overflow itself though that I can tell. It's just splashing into the overflow on and off.

BigHildy53 · Sep 10, 2018

ScooterV said:
I'll join in on surface agitation noise. I have two MP60's and when they kick up I hear it. No difference in the overflow itself though that I can tell. It's just splashing into the overflow on and off.

+1
I have the same issue when my gyres cause excess surface agitation.

Rcollick · Sep 10, 2018

BigHildy53 said:
+1
I have the same issue when my gyres cause excess surface agitation.

It sounds like I'm just going to have to get use to it. I don't want to turn down the flow. Thanks for everyone's help.

ScooterV · Sep 10, 2018

Rcollick said:
It sounds like I'm just going to have to get use to it. I don't want to turn down the flow. Thanks for everyone's help.

My wife has complained. She knows just enough about my Apex and profiles she asked me to make a "movie mode" profile so it's quiet, lol. Mine come and go though and most agitation is earlier in the day.

Rcollick · Sep 10, 2018

ScooterV said:
My wife has complained. She knows just enough about my Apex and profiles she asked me to make a "movie mode" profile so it's quiet, lol. Mine come and go though and most agitation is earlier in the day.

I never thought about lowering the flow just for a few hours in the evening. I don't have an apex but it would be simple enough to do from my reeflink. I was always trying to keep the flow as high as I could for the acros. They should be fine for 3 to 4 hours in the evening with lower flow right?

ScooterV · Sep 10, 2018

I'm no acro expert, but a few hours of lower flow I can't see as an issue. Many use profiles and change the flow on and off all day long. It would be "low tide"

Dburr1014 · Sep 11, 2018

So, how much do do you have into the overflow? Tank to wier drop. I think you would want no more than a 1/2" drop.

Dburr1014 · Sep 11, 2018

Also, if it's tuned just right, there should be very little going in the 2nd drain.

jgvergo · Sep 11, 2018

One of the big advantages of a bean animal system is that it is si

Rcollick said:
Tank is 20 inches deep. I do have a crazy amount of surface agitation.

My tank is 17 inches deep, so I have less vertical room to play with. I have my WAV powerheads about 1/3 to 1/2 way down from the surface to keep surface agitation reasonable and not blow my sand around too much. It's a balancing act.