depending on the the brand of bags you use, they will have different types of plastic fill / drain openings. If it is the style with a plastic plug and a screw cap that goes over that, you can use nylon barbed fittings from the hardware store. Go to a Home Depot or Lowes and look in the sprinkler system section. They should have every type of fitting for connecting tubing. They also sell the tubing in bulk. Get something reinforced so it won't kink - like spa tubing. Use hose clamps to secure the tubing over the fitting, even the one on the bag. You can find a barb fitting that fits the plastic opening on the bag. Put a clamp on the outside of that, then wrap the clamp with plastic stretch tape to protect the bag. I'm not sure you will need the carpeted boxes. The 650's should stay in there pretty snug. (Message edited by Rich_G on January 24, 2007)
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