Loud overflow box

[Jshlun]

Hello all, I have a standard overflow box with 2 bulkheads drilled in the back of the glass, these are connected to 90 PVC connections then routed to the sump. It was really loud when I first set up so I drilled on top of the 90 and connected an 1/8" barb fitting fitted to some 1/4" rodi line with a ball valve. This made it much more quiet but it's still fairly loud. Is there anything else I can do to make it a little more on the quiet side.

 

[piranhaman00]

Hello all, I have a standard overflow box with 2 bulkheads drilled in the back of the glass, these are connected to 90 PVC connections then routed to the sump. It was really loud when I first set up so I drilled on top of the 90 and connected an 1/8" barb fitting fitted to some 1/4" rodi line with a ball valve. This made it much more quiet but it's still fairly loud. Is there anything else I can do to make it a little more on the quiet side.

Post pics

 

[theMeat]

Put the return from pump over rim and use two bulkheads for herbie style plumbing.
With a single drain system think a diy stockman is your best option. That and lower flow

 

[W1ngz]

Pics or video? Is this an internal overflow box with external plumbing?
I'm having trouble understanding the setup as you describe it.

 

[Jshlun]

Pics or video? Is this an internal overflow box with external plumbing?
I'm having trouble understanding the setup as you describe it.

I can get some pics later on today it's just an internal overflow box that I had to drill 2 holes in the glass to mount. On the outside of the tank are 2 standard threaded 90 degree PVC fittings that are threaded into the bulkhead fittings that are holding the overflow box onto the tank

 

[W1ngz]

Try this guide.

Herbie Overflow Plumbing Guide for Quiet Reef Aquariums - gmacreef

The Herbie method can quiet down your aquarium drain and eliminate microbubbles. The guide includes helpful diagrams and explains each component.

gmacreef.com

 

[Jshlun]

Try this guide.

Herbie Overflow Plumbing Guide for Quiet Reef Aquariums - gmacreef

The Herbie method can quiet down your aquarium drain and eliminate microbubbles. The guide includes helpful diagrams and explains each component.

gmacreef.com

I cant do that as I do not have a box behind the tank it just pvc pipe coming out of the tank

 

[kput]

Not sure on your setup without photos, but I have a frag tank that's drilled in the rear. I attached 90 degree elbows, and made a small durso pipe. It has eliminated all sound from that part of the tank.

 

[W1ngz]

You can use a street elbow on the tank side, inside your overflow to keep the emergency higher than the siphon. I ran a 3 drain system in this way for years on my previous tank which was back-to-back with my sofa. It had to be and was dead silent.

 

[Jshlun]

You can use a street elbow on the tank side, inside your overflow to keep the emergency higher than the siphon. I ran a 3 drain system in this way for years on my previous tank which was back-to-back with my sofa. It had to be and was dead silent.

awesome I appreciate the help! I'll try those ideas out

 

[piranhaman00]

Try this guide.

Herbie Overflow Plumbing Guide for Quiet Reef Aquariums - gmacreef

The Herbie method can quiet down your aquarium drain and eliminate microbubbles. The guide includes helpful diagrams and explains each component.

gmacreef.com

This is very interesting, I am having similar issues, thanks!

 

[chowberg]

You can use a street elbow on the tank side, inside your overflow to keep the emergency higher than the siphon. I ran a 3 drain system in this way for years on my previous tank which was back-to-back with my sofa. It had to be and was dead silent.

This is what I'd recommend also. Inside the overflow box I'd have one elbow facing to the top of the tank and the other facing down towards the bottom of the tank/overflow box. On the outside of the tank I'd add a gate valve on the pipe where the elbow is facing towards the bottom of tank/overflow box. Some say to use a ball valve, but I've had a much better experience with a gate valve when it comes to tuning it. This method has worked for me!

 

[W1ngz]

This is what I'd recommend also. Inside the overflow box I'd have one elbow facing to the top of the tank and the other facing down towards the bottom of the tank/overflow box. On the outside of the tank I'd add a gate valve on the pipe where the elbow is facing towards the bottom of tank/overflow box. Some say to use a ball valve, but I've had a much better experience with a gate valve when it comes to tuning it. This method has worked for me!

My first build as a newbie was with a ball valve, because of the sticker-shock I got looking at gate valves.
Now I got a gate valve, and will never ever use a ball valve again.

 

[Jshlun]

This is what I'd recommend also. Inside the overflow box I'd have one elbow facing to the top of the tank and the other facing down towards the bottom of the tank/overflow box. On the outside of the tank I'd add a gate valve on the pipe where the elbow is facing towards the bottom of tank/overflow box. Some say to use a ball valve, but I've had a much better experience with a gate valve when it comes to tuning it. This method has worked for me!

thanks for the suggestion, I already have a ball valve on both outputs but it's been getting to hard to turn probably time to replace it with a gate valve!

 

[Jshlun]

This is what I'd recommend also. Inside the overflow box I'd have one elbow facing to the top of the tank and the other facing down towards the bottom of the tank/overflow box. On the outside of the tank I'd add a gate valve on the pipe where the elbow is facing towards the bottom of tank/overflow box. Some say to use a ball valve, but I've had a much better experience with a gate valve when it comes to tuning it. This method has worked for me!

I did this and it worked perfectly thanks for the tip!

 

[chowberg]

I did this and it worked perfectly thanks for the tip!

Great news! Once in a while you might need to adjust the valve on the full siphon drain (elbow that faces down) because the pump/overflow teeth might get dirty. Enjoy your quiet overflow!