cheap submersible pump recommendation

I am looking for a cheap submersible pump to use to transfer water from my RO/DI storage to my saltwater storage and from there to the tank. Any recommendations for a cheap submersible pump?? Anyone have an old one they want to "donate" or sell??
Thanks, I thought of using a powerhead but was not sure it would have the power to push the water from container to container.


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I've got a Taam 1700. New in Box $30 plus shipping. I bought it new for $35 from my friend who's a vendor. Never used.