PVC overflow noise

[MrDJeep123]

How do I silence the intake for a pvc overflow? There's quite the sucking noise. I managed to silence it some by reducing the flow into the sump area. With that, I've also had to reduce the flow from the pump to the tank. I'm not getting as much flow from that...which is slightly depressing given how much flow the mag pump can output. Advice is greatly appreciated and thank you in advance.

 

[Jimbo662]

What type of drain system do you have set up?

 

[AZDesertRat]

A description or photos of the standpipe and overflow plumbing would really help.

 

[Vpham]

If it is plumbing from a drilled tank with diy over flow box, u can put 1/4" tube (which common find in RODI system and at local hardware store), put it in the intake slowly until u hear loudest air sucking noise from a tube, stop it there. Cut off a top remain, leave 1-2" long.
If not, can u take a pic of how that set up....

 

[MrDJeep123]

*Not my image, (I didn't take any photos of the build process...sadly enough,) but the overflow is very similar with the exception there is no 45 elbow going to the sump.



This is the intake area of what I've done.

 

[Vpham]

Let me make sure I understand.
Ur tank is bottom drilled? What's a tallest pipe with cap on? And 2 pipes in front of it r ur drain?

 

[mikey_p]

that's how mine is n it's quiet

 

[mikey_p]

vpham he made a overflow bc his tank isnt drilled at all and the tallest pipe is for a vent i have the same setup on my small tank

 

[Vpham]

Ok. Now I got it...sorry I couldn't get u more help. I never had that set up ever...
Couldn't it be better to drilled for over flow? Does it continuously drain after a power outage?

 

[MrDJeep123]

Ok. Now I got it...sorry I couldn't get u more help. I never had that set up ever...
Couldn't it be better to drilled for over flow? Does it continuously drain after a power outage?

It was already established tank, and I wanted to do something I've never done before. I thought about doing that, and I may actually do that at some point in the far future. I made an all-in-one area before I did this. Decided to do something different.
Build Thread

After power goes out it looses siphon. Water goes below the intake line and it can't pull anymore water in. I drilled a hole on the return, so there is no back siphon. Fortunately guessed right first time. I just needed to figure out the noise.

 

[MrDJeep123]

that's how mine is n it's quiet

Is this in the tank? How does it work?

 

[mikey_p]

yes its in tank n works just as a internal overflow would i just used a 1 1/4" x 1" reducer shaved the inside a little on the 1" side and then drilled holes in the big side of it n its been quiet for me ive put my rio 2500 pump on it at around 5-600 gph and it made a lil noise but not much

 

[MrDJeep123]

yes its in tank n works just as a internal overflow would i just used a 1 1/4" x 1" reducer shaved the inside a little on the 1" side and then drilled holes in the big side of it n its been quiet for me ive put my rio 2500 pump on it at around 5-600 gph and it made a lil noise but not much

The holes are below the water surface? Is there a cap on top or does it surface skim as well? I'm sorry, but the directions are a little unclear to me.

 

[mikey_p]

Holes are only in water enough for water to flow over them its a surface skimmer no cap on top that part I can take pics for u tonite when I get off work of everything

 

[MrDJeep123]

Holes are only in water enough for water to flow over them its a surface skimmer no cap on top that part I can take pics for u tonite when I get off work of everything

That would be helpful. Thank you very much.

 

[mikey_p]

 

[afamousjohnson]

Instead of restricting the flow on the drain hence having to slow return - why not add a T there on the return only with a ball valve for controll of flow. One of the T up to tank the other off the T to feed some other equipt fuge or just to recirculate back thru the sump. With this you could dial in how much water is going into tank with out restricting pump and hopefully help it get quite?

 

[MrDJeep123]

OHHHH! That makes sense, now that I can see it better. Thank you very much!

Instead of restricting the flow on the drain hence having to slow return - why not add a T there on the return only with a ball valve for controll of flow. One of the T up to tank the other off the T to feed some other equipt fuge or just to recirculate back thru the sump. With this you could dial in how much water is going into tank with out restricting pump and hopefully help it get quite?

I kind of see what you are saying. The drain is hard plumbed and I've already added a valve to it. The return is not hard plumbed, but has a valve. I was originally going to hard plumb the return, however, I changed my mind. I did figure out some of my problem was not enough water So I added some more and that actually helped. I'm afraid of flooding, but wanted to plumb this anyways. It's toned down a bit with the noise. Except, this time it drains fast and then all of a sudden gulping and gurgling noises. Water goes to sump, it's quiet and then it gurgles again. Approximately every 44 seconds.

I'll look into to possibly making the portion MikeyP suggested. Are there any other suggestions before I commit to this?

 

[mikey_p]

what size pipe did you use and what is ur pump rated at for the head that you have ? i had a eshopps overflow box do the same thing as ur describing and all i could do to fix was lower the flow back into tank in your case tho maybe a bigger overflow is needed ?

 

[MrDJeep123]

what size pipe did you use and what is ur pump rated at for the head that you have ? i had a eshopps overflow box do the same thing as ur describing and all i could do to fix was lower the flow back into tank in your case tho maybe a bigger overflow is needed ?

3/4". The pump is a mag 3, rated for around 350 gph.