Hi
Recently used a serviced pitch for the first time and they are fab.I bought a ballcock system on ebay that fits in the side opening of your aquaroll with a standard hozelock fitting to supply your water keeping the aquaroll about half full .the waste can be done in a few ways,i personally bought a water butt tap with a hozelock connector and fitted it low down in my wastemaster then just used a length of garden hose to the drain.I think some people just run a length of the convoluted waste hose straight to the drain.
Hope this helps.
Sean