Building a sump :o

ca161406

Member
ok ive decided to make my own sump out of an old 45 gal...i drew the design up the other day. is there any flaws to it or somthing i should change?

 

ca161406

Member
ive herd that before. but i also herd they baffle the sound too. so i was confused on what to put in to make the sound go away lol
i also herd that if you fill the overflows with bioballs the sound would be dampened too???
 

lion_crazz

Active Member
Yeah, they will help with sound reduction. However, they will need to be cleaned pretty frequently. I would just have the water come down, go through PVC and have the PVC piping dump into filter socks. This will give you much needed mechanical filtration as well.
 

aquaknight

Active Member
I think they only baffle the sound on most wet-dry's because of how they are setup? 99% of wet-drys have that dripping setup where the water rains down onto the bio-balls from those big ole sponges. On a normal sump-type set-up, noise is a good bit less.
As far as your design, what skimmer are you planning on running? If its an in-sump skimmer, look into how much water height the skimmer is required to sit in. Most usually require around 9"-11", so you might have to raise that first baffle height.
Also, the last baffle on your bubble trap should be the same height as the first. Otherwise it is ineffective and really only have two baffle for the bubble trap.
 

ca161406

Member
yeah thats how i had planed it for a prefilter before the bio balls. ok so basicly i should just remove that whole chamber and just have pvc outlets at the bottom :)
also i was wondering if there was a fail safe type thing to prevent flooding. i was thinking if theres enough space in the sump thats not occupied with water. and that because the overflows on the main tank are a lil below water level if the power shut off then the tank would drain to below the overflows and that wouldnt be enough to flood the sump. kinda lame description but i hope yeal know what im talking about so i can see if thats gonna work lol
also i was thinking of setting up a top off system. would the sensor go in the tank or the sump?
 

aquaknight

Active Member
Yea, in the event of a power outage, water will just back flow into the sump, and the water level will get higher. That's why it's important to never undersize your sump.
The ATO (auto top off) would go in the return pump area in the sump. That is the area that will loose water to evaporation.
 

ca161406

Member
aight cool thanks ;)
wow that makes me think about using my 55 gal cuz its taller. but then again it would be hard for maintenance under the stand. i need to go do some measuring. and too the 55 is acrylic so it has the top rim i guess on it so it might be difficult to work with
 
Dont mean to hijack this thread but I am also building well planning out a sump for my 135. Would it be better to have a separate place for the skimmer or just in the fuge will be ok?
 

jimmy40741

Member
ca161406, You didn't mention if your tank was drilled or not. If it's drilled then in the event of a power outage the tank will drain down to the lowest 'hole' in your tank whether it's the overflow or the return. If your tank is not drilled, then yes the tank will drain down to the overflow box, but due to gravity pulling down the water in the return line water will be syphoned down until it drops below your return. I just set up a 30 Long as a sump on my 125 and the best way I found to stop the syphon on the return is to install a check valve. As soon as the flow up stops on the return the valve shuts and you get 0 water going back into your sump from the return. I am using an overflow box and basically the only water going to my sump when the electricity is shut off is the amount of water in the lines going to the sump, and it only raises my level about an inch or so.
indigoblutc, I am no expert on sumps, as a matter of fact I just built my first one, but I read a lot on here and other places about sumps and changed my design a few times before I settled the one I thought would be best for me. There is a debate on putting the skimmer in the fuge because some say that you are skimming water that inhabitants of your fuge need. I don't know if this is correct because it would seem to me that if your skimmer was before the fuge then that would be the same as if it was in the fuge. I know that you definately don't want it in the return area because you will be introducing bubbles in that chamber that might get returned to your DT. Some people say to put it in the input chamber because your bubble trap will take care of the bubbles produced by the skimmer. So I guess it depends on if you are building a sump big enough for 3 or 4 chambers. If you have the room I'd build one with input->fuge->skimmer->return. If not then go with input/skimmer->fuge->return or input/skimmer->return<-fuge.
 

sman

Member
I too say ditch the bio balls. I have zero noise coming from my sump other than the skimmer. The only noise I have is coming from the tank drain inside the overflow.
Also raise the last baffle a bit.
Other than that looks about identical to the sump I just built and it works fabulusly.
Check valves on returns are great AS LONG AS YOU CLEAN THEM! I am speaking from experience. I myself used a small drill bit and put a "siphon break" in the return just below the waters surface. Ill see if I can get a video of it in action when I get out of work.
 

ca161406

Member
my tank is drilled buut there is a pvc pipe that goes up to the top of the over flow so the water falls in from the top and not the very bottom. so the overflow is always filled to the top with water. i can find a pic if my describing is bad haha
and the last baffle as in on the bubble trap?
and would the check valve go on the lines going to the sump? im kinda confused on this because yeal said on the return line
 

sman

Member
The check valve ( i dont recomend) would go between the return pump and the tank. it keeps water from going back into the sump if the power goes out due to a siphon.
 

ca161406

Member
i might use both. siphon break and check valve. and to i dont plan on putting the return line to far under water.i did the math i can keep it 2inches under and it wont be enough to flood the sump at the water level it will be at
 
Top