Help! Can you use a submersible pump out of water?

[Cossack1977]

I need to know if you can use submersable pumps out of water?
The pump i have bid on ebay is a RESUN sp-9000 3500l/h and not until after i bid did i think to ask the question if it could be used out of water.

If not why cant it be?

Ive got 9hrs to go on ebay before its mine so if its no good i need to cancel my bid soon.

the picture on the box looks like it can but the picture of the unit only shows one pipe.

here's the link on ebay:

http/cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...7702934989&rd=1

here's the link to resun:

http/www.resun-china.com/anniou/Eng/product_new5.HTM


HELP

 

[Dorkhedeos]

how would a submersible pump work outside water when it has to be in water to operate? what are you planning to use this for?

 

[Cossack1977]

how would a submersible pump work outside water when it has to be in water to operate? what are you planning to use this for?

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what is the difference between a submersible and a none submersible?
i plan on using it for a external filtration setup so i dont want the pump in the tank.

 

[Dorkhedeos]

if you look at the pump, there are slits in the side of it and there is only one hole, which is for the output. submersible pumps must be submerged if there are slits for the water to go through. non-submersible just means you cant put them in water, or you will get zapped.

 

[Tolak]

If it has an intake & output where you can hook up hoses it can be used outside the tank if you prime it. Better keep it in a bucket, it will probably leak like crazy if it's submersable. Mine does, I use it to pump water out of tanks for water changes. 75 gallons of water pumped out leaks out around 4 gallons.

Tolak

 

[Bignose]

There is an additional reason it is normally bad to run one of these pumps dry: the water helps cool the pumps. It should not hurt the pump if you run it dry for a few seconds, but for run it for too long and the pump will most lilely overheat.

The link you provided shows pictures of pumps with outlet tubes, but no inlet tubes. But I just see slits for the intake, so these are most likely just sumersible pumps that have to be completely surrounded by water to work correctly.

 

[Cossack1977]

There is an additional reason it is normally bad to run one of these pumps dry: the water helps cool the pumps. It should not hurt the pump if you run it dry for a few seconds, but for run it for too long and the pump will most lilely overheat.

The link you provided shows pictures of pumps with outlet tubes, but no inlet tubes. But I just see slits for the intake, so these are most likely just sumersible pumps that have to be completely surrounded by water to work correctly.

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emailed the seller and they have inlet and outlet pipes.
The pump would be in a filration circuit so it wont be run dry and shouldnt the water passing through it keep it cool?

 

[Ed4567]

I can't follow the links you provided, but without knowing the specific pump my feeling is it will probably be able to run in the way you described. This is based purely on it having a flow rate of 3500 l/h.