Water change return water and mitigating the flow? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 05-18-2019, 07:51 PM Thread Starter
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Water change return water and mitigating the flow?

So I'm using two pond pumps to refill 60 gals twice a week. And I'm having trouble keeping the return water from rearranging my aquarium and I'm wondering, what method is best to keep the return water from impacting the scape? I've been wondering this for a while and while I know it seems like a basic question, I'm interested to see the responses.

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post #2 of 5 (permalink) Old 05-18-2019, 08:02 PM
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I use a removable PVC elbow on the PVC J-tube I made to add new water back to the big tanks. On the smaller tanks I remove the elbow and slip on a piece of vinyl hose that is attached to an extra Eheim strainer with a pre-filter sponge or similar scrap sponge from my HMF filter media.

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I just refill directly from the tap with untreated well water and a mix of hot and cold water to approximate tank temperature.

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post #3 of 5 (permalink) Old 05-19-2019, 05:05 AM
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Quote:
Originally Posted by deeda View Post
I use a removable PVC elbow on the PVC J-tube I made to add new water back to the big tanks. On the smaller tanks I remove the elbow and slip on a piece of vinyl hose that is attached to an extra Eheim strainer with a pre-filter sponge or similar scrap sponge from my HMF filter media.



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I just refill directly from the tap with untreated well water and a mix of hot and cold water to approximate tank temperature.


I made something very similar for my Python, but added a quick connect because Iím lazy and use a tee instead of an elbow because it is a lot more mild in the way of turbulence when refilling.


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post #4 of 5 (permalink) Old 05-19-2019, 05:32 AM
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Elbow U over rim of tank to a T with a big block of coarse foam zip tied around T to diffuse output. Of course easiest is just turn pump down with valve, itís better for your fish to slowly add back water anyway.
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post #5 of 5 (permalink) Old 05-19-2019, 03:38 PM
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I refill with a pump and had the same. I built a PVCP "U" to hang on the edge and added a tee to make two outlets to go each direction, which reduces the velocity and volume of the water at each. One could add as many tee and outlets as needed to get it down. Another method is drilling a series of holes in the pipe and capping the end which allows you to test and add more holes as needed. If a drill is not handy, cutting slots with a hacksaw does good also.
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