Can anyone out there with a basement sump help me?

[delta]

can you get a picture of the inside of the overflow box and the dimensions

From a guess you are creating a siphon as there is no water height control at the tank/ in the overfloe. i.e durso stockman drain. this will cause the water to create a siphon in you drain line. Most likely short of adding anoth whole in the tank and adding annother drain line you will need to do an external durso. so that elbow on the back becomes a T and you run the plumbing up over the tank, cap it and add a vent to control the durso. then add a elbow in the overflow box> If this is your only option then you will aslo need to double the size of the reverse durso in you sump. you need Open area for the Air and water to separate so the exit of the drain in the reverse durso(in sump) should be a few inches above the water

 

[reefstarter]

ahhh drilling holes , good Idea . the problem is back pressure from the water hitting the bottom sounds like if thats the case another thing you might try is cutting the PVC where it enters the sump and a 45 degree angle with half the cut in the water and half out

 

[Turbosnail]

can you get a picture of the inside of the overflow box and the dimensions

From a guess you are creating a siphon as there is no water height control at the tank/ in the overfloe. i.e durso stockman drain. this will cause the water to create a siphon in you drain line. Most likely short of adding anoth whole in the tank and adding annother drain line you will need to do an external durso. so that elbow on the back becomes a T and you run the plumbing up over the tank, cap it and add a vent to control the durso. then add a elbow in the overflow box> If this is your only option then you will aslo need to double the size of the reverse durso in you sump. you need Open area for the Air and water to separate so the exit of the drain in the reverse durso(in sump) should be a few inches above the water

+1 To all of this plus you may want to use a "Y" tee instead of the regular tee on the reverse durso it will help the air escape better.

 

[ro_nicu]

the only truly silent overflow is one running at full siphon. see what you have for return (measure, don't guess). go to the bean animal homepage and use the calculator to size the drain pipe so it runs at full siphon. use a strainer on the overflow so nothing that does not easily go all the way through can get into the drain pipe.

I have a 1 in running full siphon and a 2in as a backup, in case the 1in gets clogged by something (had a snail get in there once) since I have no strainer on the 1 in. at my 4ft drop the DC1200 full blast has a hard time keeping that 1 in at full siphon all the time.

In my opinion a basement sump with anything but full siphon drain is a waste, you just waste energy pumpin water up and than dropping it down and making a big noise. With a full siphon you could at least run a nozzle skimmer of the overflow.

 

[Turbosnail]

I run a Bean overflow I love it very quiet!

 

[ryguy]

the only truly silent overflow is one running at full siphon. see what you have for return (measure, don't guess). go to the bean animal homepage and use the calculator to size the drain pipe so it runs at full siphon. use a strainer on the overflow so nothing that does not easily go all the way through can get into the drain pipe.

I have a 1 in running full siphon and a 2in as a backup, in case the 1in gets clogged by something (had a snail get in there once) since I have no strainer on the 1 in. at my 4ft drop the DC1200 full blast has a hard time keeping that 1 in at full siphon all the time.

In my opinion a basement sump with anything but full siphon drain is a waste, you just waste energy pumpin water up and than dropping it down and making a big noise. With a full siphon you could at least run a nozzle skimmer of the overflow.

In hindsight, I would have gone with a full siphon. Now that I have the hole drilled and overflow box installed, I'm going to try to make it work.

After messing with it for a few hours today, drilling holes in the end of the pipe underwater seemed to help. Spread the water out in the filter sock and reduced the up bubbling drastically.

It's still not perfect but I'm getting there. Thanks for all the help everyone.

 

[delta]

In hindsight, I would have gone with a full siphon. Now that I have the hole drilled and overflow box installed, I'm going to try to make it work.

After messing with it for a few hours today, drilling holes in the end of the pipe underwater seemed to help. Spread the water out in the filter sock and reduced the up bubbling drastically.

It's still not perfect but I'm getting there. Thanks for all the help everyone.

your reverse durso in you Sump is not big enough it should be double the size of you drain pipe. So for you 3" Get a small section of 3" PVC 3" cap and a 1-1/2" to 3" T. Also cut the bottom of it at a 5-10° angle. Drilling holes in it will not fix your issue.

As well unless you do something to control water level in you overflow it will always siphon, fill and flush. As long as you can fit an elbow in there you will have no problem at least adding a modified Durso which will control the water height in the overflow. If it is large enough to do a Stockman mod that would be easier but it doesn't look like you have that much space

 

[ro_nicu]

It's not in hindsight, you can still fix it.
making it run at full siphon is just a matter of installing a restriction at the bottom end of the pipe. Or you can switch the entire pipe with something smaller so it keeps running at full siphon.

If you don't mind, can you post a sketch on how the overflow box is installed on the tank?

In hindsight, I would have gone with a full siphon. Now that I have the hole drilled and overflow box installed, I'm going to try to make it work.

After messing with it for a few hours today, drilling holes in the end of the pipe underwater seemed to help. Spread the water out in the filter sock and reduced the up bubbling drastically.

It's still not perfect but I'm getting there. Thanks for all the help everyone.

 

[delta]

It's not in hindsight, you can still fix it.
making it run at full siphon is just a matter of installing a restriction at the bottom end of the pipe. Or you can switch the entire pipe with something smaller so it keeps running at full siphon.

If you don't mind, can you post a sketch on how the overflow box is installed on the tank?

Not without drilling another hole in the tank to add a backup drain.

While there is nothing wrong with Bean/siphon style drain when installed correctly. however installing one with out a backup drain is just an accident waiting to happen.

 

[ro_nicu]

Assuming the hole is in the back of the tank, one can install an overflow box to the hole and just plumb the bean from the box. Acrylic is a little expensive but easy to work with and making a custom box is not rocket science.
there's always a way around things, depending on how involved one wants to get while working the solution.