i have just bought 10m of USB cable to run from one end of the through lounge to the other end....i.e a 5m a-b cable and a 5m extender cable (has a block circuitry box attached to it)..... what i need to know is how do i securely and permanently join this 5m ordinary USB cable to the 5m extender box/cable? as it is going to be buried underground (in 4/5" drainage pipework) and i dont want to have it come apart at this connection point if pulled from iether end of the cable. i dont want to use just insulation tape to make this connection as eventually the tape will leak and cause corrosion if not now then tomorrow! i dont know if i should just use some araldite or structural adhesive but even that will probably cause some sort of corrosion i think. i have even thought of using cable ties but they keep slipping off!.... pls help using cat 5/6 cable is also a no no as i have already bought 3 sets of these 10m USB kits!