For the last 2 nights I have had the "joy" of being trained on the water and waste bowsers.
Water is easy enough - 3,000 litres of treated water in a lovely big automatic diesel lorry, reverse up to aircraft, jump out get into the "bucket" on the back, raise to desired position, open service panel, attach hose, open a valve on the aircraft and then the one on the hose. Stand back and wait as up to 250 litres uploads. A green light on the aircraft somes on when full and the valve automatically closes. Disconnect hose, close the service panel and off you go.
Waste is...more complex and fraught with the risk of getting covered in litres of turdage and piss. Reverse up - but offset slightly as you don't want to be directly under it, get into the bucket and raise to desired height. Open service panel, there are two caps to open - one for the waste and one for the water/chemical rinse hoses. Attach the 4 in wide waste pipe. Attach the water/chemical hose. Check waste hose is securely attached. Check it again. Slowly turn on the waste vacuum and open the T-bar valve. A deluge of turdage and piss then cascades through the pipe and whilst this is happening open the valve to introduce the water/chemical rinse. Of course some "aroma" escapes and the evilness of it al depends on whoever did the previous service - if they didn't introduce enough water/chemical then it's utterly abohrrent, if they did it just smells of the chemical. Once the turdage has all gone and you can see the water/chemical come through leave it for about 30 seconds for a thorough rinse then shut off the water/chemical, turn off the vacuum and disconnect the waste pipe. If enough of the rinse has gone through there is very little smell. Close the waste valve and then put the cap back on. Finally, pump another 10 litres of the rinse chemical in then disconnect that hose. Close the service panel and off you go.
After 15 or so aircraft, you then have to go and empty the bowser...that's fun
