Pump or Siphon for a fishtank?

>>1102284
I dont know anything about advanced aquarium pumps.
But have you considered using a UPS battery backup?

When the power goes out, it will automatically move to battery power and will continue to run your pumps uninterrupted.
Its like unplugging a laptop from the wall.

In the ~$100 range you can find ones built for high powered desktop computers.

The power draw from your pumps will be a fraction of what a gaming pc is, so it would run the pumps for a long time.

I have an ultra small form factor PC running a fileserver. I have it on a 825VA UPS backup.
The calculations say that at idle my mini pc and raid array would run up to something stupid like 27 days straight on just battery power.

You could easily find something that would give you days worth of power for cheap.

>>1102284
Best bet would be a self priming canister filter mounted in the basement below the tank and above the sump.

>>1102325
I have already built up a trickle filter system and tank for the sump. Unless the canister filter starts the flow somehow. I don't know if I would want a canister filter if I already have a trickle.

>>1102324
I had thought about that. My current pump is 2100 gph 70 watt, 110-120v

The thing with the battery backups though is I had one where I worked at for our main computer system. Whenever the power would go out I had only maybe a minute of power I could use from it to be able to shut down the computer before the battery shut off. So I didn't feel that , that was viable for a power outage in my home. Especially since I recently had a power outage that lasted about 12 hours. But if you can convince me otherwise it might be helpful. I could just run the pump on it, but it would be nice to be able to run the protein skimmer and my heaters as well on a battery if it will work.

>>1102343
If you are serious about a battery backup, buy a killawatt on amazon for like $15.

Check the actual real life power drain of the vital parts of the tank.

Once you get an approximate overall power usage youll be able to find an appropriately sized UPS.
Itll be extremely easy to calculate for it because the constant power draw of a pump, unlike a PC where you have to account for fluctuations in idle vs under load.

Im not sure how much draw actually would come out of a 70w pump.

>>1102387
I might do that as long as a back ups isn't going to cost me more than 100, as I feel I can just get a small pump and put it in the tank for much cheaper. Although I would prefer to keep extra junk out of the tank.

Alternatively, does anyone know if there is a type of electric device that will start a siphon up whenever power kicks back on. Or is there an electric device that will turn on another device for lets say 2 minutes and then shut off after a given amount of time. I could have a pump in the actual tank then that way and not have to run it constantly because once the pump pumps it down it will continue to siphon through the pump even after its off. That way I'm not wasting electricity pumping all the time and making extra noise in the tank.

>>1102284
>drill the fish tank

honestly, you know this is the only answer

>>1102458
unless its tempered

>>1102482
Nigga its a bowfront, so it means its acrylic

>>1102507
Its not acrylic. Its glass for sure.

>>1102284
You might wanna heighten the placement of the poly pipe on the right. Not gonna do much good when the power comes back and there's only 3 inches of water left in the tank

>>1102646
The tubes aren't set up completely yet, they are just hanging in there right now. I wwas planning to have a surface skimmer/weir to hide the return line. and ill probably shorten the flow pipe some when I get things going.

if its level it will last through the warranty. just go buy some glass and practice drilling. its pretty cheap to practice. get the same thickness so you can get an idea of a good slow pace. last i checked they dont temper the bottom.

>>1102284
They sell these, it's like a reverse air pump. You attach it to the siphon and it will pump air out once power comes back

>>1102284
Look for aquarium lift pump or lifter pump or something. I forget the name it's been a while since I've been involved in the hobby

File: Fish siphon.jpg (179KB, 1600x1211px) Image search: [Google]

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I know it looks complex but it's relatively simple: steam from the boiling kettle produces a torque on the pulley which prevents the weight from flushing the siphon. In the event of power failure, the steam flow stops and the weight descends, conducting the water and fish safely to the basement.

File: 270e08d6-22dd-4178-9d12-1765b31a50eb..gif (516KB, 371x209px) Image search: [Google]

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>>1103242
thanks seems doable

>>1103211
wouldn't that make it like another pump then though? or does it just go till the siphon starts?

>>1102284
>I need a way to bring water down to the sump in the basement in the case of a power outage.

Am I the only one who's going to ask why? Is there a particular reason the water can't just stay in the tank? Is this some sort of End Of The World fish genocide pact?

>>1102343
Canister filters are self priming.

Thats all you needis a self priming pump

>>1103807
Increasing the volume makes the water quality easier to manage and opens up other opportunities. OP could be doing aquaponics in the basement for all we know.

>>1103798
It will pump a small amount of water once siphon comes back, hence its alternative use as a dosing pump.