Hello,
I have a pump going out from my ST to FT with a 3/4 inch pipe. i have a syphon going out from the FT to a Swirl Filter and then on to the ST with a 1 1/2 pipe. the issue is the water does not "flow" fast enough out of the FT into the ST. The 1 1/2 inch pipe is hardly utilized to its full size.
if I increase the flow of water into the FT by running another pump from the ST in an effort to increase the flow out of the fish tank toward the ST and increase the rate of flow, to my disappointment, instead of the rate of the water increasing in the 1 1/2 pipe out of the fish tank, the level of the water in the FT increases and it over flow, eventually running the ST dry since notheing is going back to it. Any help on how to increase the flow out of the fish tank?
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Hi Moe, look like your siphon is the bad guy. I don´t see the interest anyway to put a siphon out of a FT. Just put an overflow of 2" minimum from the FT out to the Swirl. Overflow pipes must be much wider than pump pipes.
The danger with overflows is that they might empty your FT....behaving like a siphon.
So you want to have some air introduced in the overflow pipe. Just drill a hole on top or put a "T"
Finally your overflow should go down to the bottom of the FT to suck the solids to make your swirl happy.
You may want to put some net on the pipe to stop the fishes getting out.
the setup you suggested is what I have, I just used incorrect way to descripe what I have, I have a 1 1/2 inche over flow pipe with a "T" to allow air in so it would not drain the FT. I have tried to attache two pictures, not sure if you can see them. one is a picture of the inside of the swirl tank as the water is coming in from the FT. The opening is 1 1/2 inch. the water is just coming in, very low rate. the pipe from the FT to the ST is at a 65 degree angle down, not really sure why the water is not gushing out!!!
when I added a second pump to the Sump tanks and sent water to the FT, basically doubling up the water going in the fish tank, The fish tanks simply fills up and the water comes out on the ground!!! for the life of me. Any idea?
Thanks
the setup you suggested is what I have, I just used incorrect way to descripe what I have, I have a 1 1/2 inche over flow pipe with a "T" to allow air in so it would not drain the FT. I have tried to attache two pictures, not sure if you can see them. one is a picture of the inside of the swirl tank as the water is coming in from the FT. The opening is 1 1/2 inch. the water is just coming in, very low rate. the pipe from the FT to the ST is at a 65 degree angle down, not really sure why the water is not gushing out!!!
when I added a second pump to the Sump tanks and sent water to the FT, basically doubling up the water going in the fish tank, The fish tanks simply fills up and the water comes out on the ground!!! for the life of me. Any idea?
Thanks
Philippe Pauvert said:
Hi Moe, look like your siphon is the bad guy. I don´t see the interest anyway to put a siphon out of a FT. Just put an overflow of 2" minimum from the FT out to the Swirl. Overflow pipes must be much wider than pump pipes.
The danger with overflows is that they might empty your FT....behaving like a siphon.
So you want to have some air introduced in the overflow pipe. Just drill a hole on top or put a "T"
Finally your overflow should go down to the bottom of the FT to suck the solids to make your swirl happy.
You may want to put some net on the pipe to stop the fishes getting out.
Hi Moe - sorry - no drawings/photo's to be seen.
Did you check the FT-Swirlfilter pipe for blockage - especially the bends?
If you use your FT/Swirl-filter-pipe as solid-lift-pipe - check that you've got enough space at the bottom between pipe and floor of tank and restrict it from sucking to the bottom. Is the entry point buried in muck?
Regards,
Hey Moe,
What about at the top of your over flow do you have a pipe on the outside of the tank going up higher than the top of the overflow? If so if it is capped that needs to either be drilled out or remove the cap it is a breather tube for your overflow and how you prime it. by filling it with water then the gravity does the rest... try to post a pic of mine...
Moe said:
the setup you suggested is what I have, I just used incorrect way to descripe what I have, I have a 1 1/2 inche over flow pipe with a "T" to allow air in so it would not drain the FT. I have tried to attache two pictures, not sure if you can see them. one is a picture of the inside of the swirl tank as the water is coming in from the FT. The opening is 1 1/2 inch. the water is just coming in, very low rate. the pipe from the FT to the ST is at a 65 degree angle down, not really sure why the water is not gushing out!!!
when I added a second pump to the Sump tanks and sent water to the FT, basically doubling up the water going in the fish tank, The fish tanks simply fills up and the water comes out on the ground!!! for the life of me. Any idea?
Thanks
Philippe Pauvert said:Hi Moe, look like your siphon is the bad guy. I don´t see the interest anyway to put a siphon out of a FT. Just put an overflow of 2" minimum from the FT out to the Swirl. Overflow pipes must be much wider than pump pipes.
The danger with overflows is that they might empty your FT....behaving like a siphon.
So you want to have some air introduced in the overflow pipe. Just drill a hole on top or put a "T"
Finally your overflow should go down to the bottom of the FT to suck the solids to make your swirl happy.
You may want to put some net on the pipe to stop the fishes getting out.
So say you have a high stocking of 8 kg in your FT your feeding by 2% will be 160 grams delivering some 48 gr of settable solids....per day
I´m not sure you need a swirl filter with all the pros and cons it brings. Put some mesh in a basket at the exit of the over flow without slowing the said flow. And use your swirl for more fishes
In small system an old sock is useful. There is no real benefit to let the solids go into the GBs, even if you have red Californians.
About the turnover frequency. I personally have 2 per hour just during the cycling with fishes. After that 1 per hour is enough for the filtrations. You may consider an air pump for the aeration to cut down all this expensive pumping.
When you come back from the sump to the FT put some spray bars or any aerating device to keep aerating and degasing.
How is the outlet is set? Is it an over flow with a T?
If you go directly from the Ft to the GB, what happens to the fish poop?
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