Overflow flow problems
- Thread starter MBilyeu
- Start date
The problem is the design, not the type. I have two DIY overflows and they handle two Quiet One 4000s with no problem and the pipe is only 1"
This is not a siphon, it is an overflow. There is no possible way for the water level to drop below 3.5" from the top of the tank (I shut off my pump and tested it), which will not quite fill the rest of the capacity of the sump. It was designed with 1-1/2" PVC EXACTLY how this link shows it.
http://images.google.com/imgres?imgurl=http://www.aquariumlife.net/images/pvc-overflow-figure2.png&imgrefurl=http://www.aquariumlife.net/projects/diy-overflow/120.asp&usg=__nZyH1PAw89d0MjuT9ST37fP3ME8=&h=323&w=303&sz=5&hl=en&start=1&um=1&tbnid=L091fBHCHyRV1M:&tbnh=118&tbnw=111&prev=/images%3Fq%3Ddiy%2Boverflow%2Bpvc%26hl%3Den%26sa%3DN%26um%3D1
http://images.google.com/imgres?imgurl=http://www.aquariumlife.net/images/pvc-overflow-figure2.png&imgrefurl=http://www.aquariumlife.net/projects/diy-overflow/120.asp&usg=__nZyH1PAw89d0MjuT9ST37fP3ME8=&h=323&w=303&sz=5&hl=en&start=1&um=1&tbnid=L091fBHCHyRV1M:&tbnh=118&tbnw=111&prev=/images%3Fq%3Ddiy%2Boverflow%2Bpvc%26hl%3Den%26sa%3DN%26um%3D1
ok, easy way to fix what ya got, the T sets your water level, if you want it higher move the T further up.
to cure the noise cap the vent and drill a small hole in the cap, say 1/8" hole
to cure the noise cap the vent and drill a small hole in the cap, say 1/8" hole
By the pictures it was impossible to see the design. What you have on the table in the first pic of it is NOT what is pictured in the diagram in the link you posted.
Making the changes you drew will fix it.
Making the changes you drew will fix it.
Ok, just to make sure I have this right. I am going to assume that I need to turn the vent so that it is always pointed upward instead of into the water? Then I cap it, and drill a hole in the cap? Will the size of the hole affect the gph of the overflow?
Also, it completely makes sense that I need the T as high as possible. The only reason that it is as low as it is was because of previous advice a couple months ago on this forum. I was asking where to put the T, and I was told to put it where it will not quite fill the sump if the power should shut off. That is why it is where it is. So essentially my whole overflow is garbage now if I want to put the T in the correct place.
On a good note, I haven't had to adjust the ball valve for almost three hours now, so until I can afford to re-do the overflow, it looks like it will be staying like this if it can survive through the night.
Also, it completely makes sense that I need the T as high as possible. The only reason that it is as low as it is was because of previous advice a couple months ago on this forum. I was asking where to put the T, and I was told to put it where it will not quite fill the sump if the power should shut off. That is why it is where it is. So essentially my whole overflow is garbage now if I want to put the T in the correct place.
On a good note, I haven't had to adjust the ball valve for almost three hours now, so until I can afford to re-do the overflow, it looks like it will be staying like this if it can survive through the night.
