Daz here is a suggestion. Why not leave your micro bore on your reel, fit a bypass pipe back into your van tank from your pump outlet side, this way when you knock your flow off at the pole there is very little extra pressure for your connections and hose to have to handle, your pump runs all the time re-circulating water back into your tank when you are off at the pole. I have mine set up like this. I use standard type connectors and normal microbore without any issues at all. Running this way cost me a total of £93 to convert to hot and I have yet to spring a leak or destroy a hose.
Hope it helps