Demin water on BAC 1-11's, I can remeber it well, Dan Air 1-11 500's used to use it very frequently about 70 Gallons for depature out of here (BRS), we also frequently had to load 7x 10 Gallon barrels in the front hold for the return trip, from some short ,hot ,high airports, the aircraft had its own electric pump to up lift the stuff, it was contained in catering box kept in the hold, if it was missing it was a hand pump job!
Never saw a BA 1-11 use it though, I beleive they had no Demin facility on their aircraft (Dry engines).
Some Rolls Royce Dart engined aircraft were equipped with Water Methanol such as the HS748 2x tanks 30 gallons each, still used today. (just checked a 748!)
