water change using pumps - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 08-26-2014, 09:50 PM Thread Starter
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water change using pumps

How does one use a powerhead to do waterchange? Pictures would help alot.
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post #2 of 13 (permalink) Old 08-26-2014, 09:57 PM
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For some of my tanks, ill attach a hose to the pump and put the pump/hose into the tanks then the end of the hose into a bucket which is where the ild tank water goes. Turn on the pump and just wait for it to get to the level I want and then turn off the pump. I would be nice if there was a pump with an on/off switch as I have to reach behind my tank rack to unplug the pump.


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post #3 of 13 (permalink) Old 08-26-2014, 10:09 PM
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Powerheads may not be quite as good as a real pump but they can work for smaller tanks where speed may not be the major question. Basic pump the water out and then pump it back in if you don't want to use a syphon and hose to refill.

For avoiding the unplugging, look into remote switches. At $10 and up, they can make it nicer.
http://www.walmart.com/ip/Woods-1356...13569/21682986

Another option for controlling a pump that is remote like in another room is a tether that goes inline with a switch to control the pump.
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post #4 of 13 (permalink) Old 08-27-2014, 12:30 AM
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Quote:
Originally Posted by PlantedRich View Post
Powerheads may not be quite as good as a real pump but they can work for smaller tanks where speed may not be the major question. Basic pump the water out and then pump it back in if you don't want to use a syphon and hose to refill.

For avoiding the unplugging, look into remote switches. At $10 and up, they can make it nicer.
http://www.walmart.com/ip/Woods-1356...13569/21682986

Another option for controlling a pump that is remote like in another room is a tether that goes inline with a switch to control the pump.

hey rich link not working :-)
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post #5 of 13 (permalink) Old 08-27-2014, 12:38 AM
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Small tetra pump with a piece of hose. Place pump in tank and hose in empty container. It's that simple. For my fry tank, a rubber band a piece of fiber fill to the inlet.


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hey rich link not working :-)
Works for me.
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post #6 of 13 (permalink) Old 08-27-2014, 02:33 AM
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Extension cord with a switch. Large round thing that you can step on to work.

I use fountain pumps.
Pump gets it started. If the flow is down hill, turn off pump.
This won't vacuum the tank, though.

Pump to refill.

http://www.walmart.com/ip/Extension-...-CORD/38472796
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post #7 of 13 (permalink) Old 08-27-2014, 03:04 AM
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Quote:
Originally Posted by Diana View Post
Extension cord with a switch. Large round thing that you can step on to work.

I use fountain pumps.
Pump gets it started. If the flow is down hill, turn off pump.
This won't vacuum the tank, though.

Pump to refill.

http://www.walmart.com/ip/Extension-...-CORD/38472796
awesome! water change day just got a lot easier! Thanks!


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post #8 of 13 (permalink) Old 08-27-2014, 03:50 AM Thread Starter
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Lots of advice, what do you recommend a good economical "pump" to siphon water from my 100g tank?
I currently use Lees gravel/vac 50' hose and it is really slow.
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post #9 of 13 (permalink) Old 08-27-2014, 04:06 AM
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This may sound really lowball but for true economy as well as speeding up the process, I might look at some cheaper ways rather than a pump. A larger diameter hose or even a second hose will double the output but another way to get a major gain is putting the end of the output hose as low as possible. That all depends on how your place lays out, of course. But if you can get the exit end of the tubing or hose a few feet lower, it speeds it up a lot. The water pressure in the syphon depends on the difference between the tank water level and where it comes out. If you are running it into a sink and can move it down to a floor drain, you get real improvement for real cheap.
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post #10 of 13 (permalink) Old 08-27-2014, 04:20 AM
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I'm sorry but this is just common sense. Hook a hose up to it and keep the pump in the tank.

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post #11 of 13 (permalink) Old 08-27-2014, 02:09 PM
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The cheap junk from Harbor Freight will let you test the flow rate of different sized pumps, then get a quality one, perhaps Becket or Little Giant.
I have used both, and had very good service from the Becket product line.
For smaller tanks (under 20 gallons) about 100 gph pump is enough.
For larger tanks something around 300 gph is better.

When refilling I set up water in a rubbermaid garbage can with whatever that tank needs (peat, coral sand, dechlor...) and pump it in holding the tubing horizontally so it does not disturb the substrate. Smaller tanks need the smaller pump, even when pumping it up from the bottom of the barrel.

My property is sloped. There is one garden that will drain really fast (lowest point) and two areas that are sort of so-so. The rest of the garden (over half the property) is better reached by pumping, water won't maintain a siphon. There is some drop, but it is too shallow to work.

Often I will use a gravel vac to siphon, but just dump the water into a container on the floor next to the tank. Use that water to clean filter media. Then pump that out via sump pump and garden hose. That goes really fast! I use a plastic storage container that holds around 15 gallons to do this.
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post #12 of 13 (permalink) Old 08-28-2014, 05:00 AM
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I use a python for water removal and light vacuuming of the substrate. Then I use the python to add about 5g of tap to add to my r/o water. After that I use a small maxijet to pump my r/o water from my 33g trash can to the tank.

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post #13 of 13 (permalink) Old 08-28-2014, 06:59 PM
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If speed is the goal, take a decent size diameter hose and cut a small slit somewhere down the line. Shove another hose about half its diameter in the slit and seal it to create a venturi. Connect the secondary host to an air compressor or shop vac and you've got quite the pump.
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