[tang daddy]

Ok for the leak if you still have it on the grey supply with brass fitting use plumbers tape that should solve it.

1- the beads in the clear canister is the di resin it should be left in.
2-yes the vamp fitting can go on the drain line do it under the dishwater return on the straight part.
3-the valve on mine is about half meaning it lets less water drain hence making the filtering alittle slower but not by much.
4-it is fine the way they have made it, if I remember correctly there is 2 pre sediment filters and 1 carbon.
5- the cold water may cause condensation if your house is warn to solve this problem use the plastic planting trays to put under the unit there may only be slight condensation so a shallow tray is more than enough.

your welcome.