HELP ASAP

[superleggera123]

i basically had an idea today but im not sure if its a good one,
instead of using a overflow can i use a pump as the intake to get water into the sump, then another pump to get the water back?
ofcourse pumps will be fully submersible.
can it be done?
do i have to buy the same pumps?
eg. 2 RIO 1700s?
how do i match the GPH

 

[Matt724]

Sure it can be done, but the gph should be exactly the same, but in reality, it's not really needed because as soon as you have water flowing up and into the tank, the exact same amount of water being put into the tank, is flowing out of it and if the pump decreases in efficiency and the GPH becomes less, the overflow will automatically make up for that. The amount that overflows is almost always the same that is pumped in from the sump, reducing the risk of the pump that puts water into the sump from breaking or malfunctioning and having more water pumped into the tank with the extra water having nowhere to go, but onto your carpet/floor.

 

[superleggera123]

bro^^ i didnt really get that
basically can it be done or not?
to be honestly i already did it for my 180,, its been a few mins since i did it.
will the gph even out? even though its not exactly the same?

 

[Joey47]

I wouldn't risk it. What are u going to do if the pump in the sump dies out? The pump in the tank will cause an over flow in the sump. So I say no

 

[Matt724]

yea, basically no, don't do it. Get an overflow

 

[superleggera123]

i solved that, easy!
pump is situated 2 inches below water line, water line stays the same in my tank for upto a week,
if the pump fails the water will fall into the sump with is big enough to allow upto 30 gallons, but 2 inches down is less thus no water on floor

 

[shua]

it wont stop syphon if the power goes out. wont work sorry inless you poke a good sized hole in the out tube @ the top of the water line and make sure it works when you get it all set up

 

[syndicate]

i solved that, easy!
pump is situated 2 inches below water line, water line stays the same in my tank for upto a week,
if the pump fails the water will fall into the sump with is big enough to allow upto 30 gallons, but 2 inches down is less thus no water on floor

yes but you would end up with a empty sump a 2nd broken pump cause its trying to pump air and overflow the main tank ...

 

[Pollabear]

In my opinion, getting a higher rated (and reliable) pump beats anything else than 2 pumps, avoid all the risk of flooding and a damaged pump.

 

[bob965]

It will work for a bit, but long-term, it is unstable. You're not really controlling the levels of your tank or sump, you're just relying on the pump outputs to be "close enough" to keep your water levels the same.

Suppose the output of the tank-pump drops slightly, since it's in dirtier water and gets more mucked up than the sump-pump. Water level in the tank will gradually rise, emptying out your sump and overflowing the tank. Now your sump-pump is run dry and burns up, and your tank-pump keeps pumping until the level drops, and that one runs dry and burns up too. Now you've got a wet floor and two destroyed pumps.

Overflow-sump setups are designed for stability, and fail-safe assurance, and your method has neither.