Has anyone here had any experience using a submersible water pump for water changes? I'm planning on getting a 75 gallon tank, and water changes become somewhat of an issue. I'd like to put a submersible, electric pump in the tank and pump the water directly to a holding tank. I would then like to put the same pump in my holding tank where I plan to dechlorinate my new water and pump it into the tank. I've been hauling water by hand and dumping it in by hand with my 29 gallon. I do a 25-30% water change every 1 - 2 weeks. I'm trying to get all my logistics planned out before I even buy the 75 gallon. My tank will be quite far from any sink or other water drain. Will Rubbermaid or Sterlite containers work as holding tanks for water I'm trying to dechlorinate for a water change? I'd like to put the tanks on a little cart to wheel around the house b/c 30 gallons of water is too heavy even for me to carry.