Wet Dry noise

[pepito113]

I have a 65 gallon tank with the built in over flow. I used the Mega Flow kit as the over flow pipes. I am getting alot of noise and air when the water drains from the tank into the wet dry. In the picture you can see the inlet tube that goes all the way down to the bottom. But alot of air is coming out and coming up to the top making alot of noise. any ideas or help please.
The pic on the left is sideways. sorry
Attachment 241209 Attachment 241210

 

[saxman]

is there an air vent at the top of the standpipe elbow? if so, have you adjusted it? if there's no vent, drill a 3/16" vent hole and see if it helps. sometimes multiple vent holes are required, and sometimes you need to add an air valve (like the kind used to control flow from air pumps) to the hole and dial the venting down a bit.

 

[pepito113]

Originally Posted by saxman
http:///forum/post/3255768
is there an air vent at the top of the standpipe elbow? if so, have you adjusted it? if there's no vent, drill a 3/16" vent hole and see if it helps. sometimes multiple vent holes are required, and sometimes you need to add an air valve (like the kind used to control flow from air pumps) to the hole and dial the venting down a bit.
The elbow already has a hole. It may be 3/16 or maybe even bigger like 1/4". The only adjust i have is how much water or the height of water in the over flow. But there is no adjust on the hole in the elbow. It just seems like its getting turned up as it goes down the pipe and through the hose before it hits the wet/dry.

 

[pepito113]

So people use 90 or 45 degree elbows before the tube connects to the wet dry. does any one have ideas or use a setup like that might stop alot of air and noise.

 

[ryancw01]

What size return pump are you using from the sump back to the tank? Smaller pump = less noise. Most of your circulation should be inside the tank so you don't need an overly powerful pump in the sump.
I have the same tank and had to downgrade my Rio for that reason.

 

[saxman]

Originally Posted by Ryancw01
http:///forum/post/3255942
What size return pump are you using from the sump back to the tank? Smaller pump = less noise. Most of your circulation should be inside the tank so you don't need an overly powerful pump in the sump.
I have the same tank and had to downgrade my Rio for that reason.
i don't agree that the flow should come from internal PH's...i use CL's so there are no ugly PH's in my systems, and they have a nice clean look. also, more pumps = more heat in the water.
however, rather than re-pumping, it's simple enuff to add a bleed valve to "tune" the return to the outflow:

with this arrangement, the return pump isn't restricted, as any excess flow is simply recirculated into the sump.

 

[pepito113]

I have a marineland 4500. 1175 gph. I thought that was good for a 15-20 turn around
Is that to much? A there is a few feet of lift so it drops the gph.

 

[saxman]

i really kinda depends on your plumbing scheme...number/type of returns, type of plumbing, number of elbows, any in-line equipment, etc. all of those things add to you total amount of head.
i'd say for a reef, it's not too much, it's a matter of HOW it's done. for instance, one of our SH setups has a 15x turnover rate, but to look at the tank, you'd never know it.

 

[pepito113]

Originally Posted by saxman
http:///forum/post/3256088
i really kinda depends on your plumbing scheme...number/type of returns, type of plumbing, number of elbows, any in-line equipment, etc. all of those things add to you total amount of head.
i'd say for a reef, it's not too much, it's a matter of HOW it's done. for instance, one of our SH setups has a 15x turnover rate, but to look at the tank, you'd never know it.

I understand. but if i am pumping too much water then more water will fall into my over flow and into my wet dry again. I am just getting alot of noise down the grey hose and in my wet dry. When it comes out the pvc tube inside my wet dry it come out with force and alot of BIG air bubbles. Thus causing alot of noise. I guess i will reduce the pump output to see if it makes less noise coming into my wet dry.

 

[beaslbob]

Originally Posted by pepito113
http:///forum/post/3256097
I understand. but if i am pumping too much water then more water will fall into my over flow and into my wet dry again. I am just getting alot of noise down the grey hose and in my wet dry. When it comes out the pvc tube inside my wet dry it come out with force and alot of BIG air bubbles. Thus causing alot of noise. I guess i will reduce the pump output to see if it makes less noise coming into my wet dry.
You could try replacing the grey hose with smooth pvc. Seems like a lot of turbulence and noise would come from the water flowing over all those bumps. and over the long doubled back design doesn't help much either.
but I don't know as I don't use the flex tube.
my .02

 

[tur4k]

I'm using a similar sump with the same gray hose. I was getting a lot of gurgling noise like you. I added a 90 degree elbow and it helped. Most of the time it's fine now, but for some reason it starts to gurgle again when I feed. It makes a lot of noise and my return starts filling my tank with micro-bubbles. It only does that when I feed and it lasts for about a half hour.

 

[ryancw01]

Originally Posted by pepito113
http:///forum/post/3256014
I have a marineland 4500. 1175 gph. I thought that was good for a 15-20 turn around
Is that to much? A there is a few feet of lift so it drops the gph.
Your total system (all pumps) should turn the tank over 15-20 times per hour for a reef. You can be higher if you want, but 15-20 should be the minimum. You can tee off the return like Saxman says to do, if you really do not like the 'look' of Koralias or other powerheads then you will have to start chopping on that mega-flow. I do not mind the look though and I like a good flow because I have corals. The two return lines are not going to cut it for my tank.

 

[cranberry]

The path of your drain hose is not helping. It indeed works better to have it slope down verses going straight into the sump. But your has to be forced back up again fighting gravity before it enters your sump.