Debi, great idea with syphon hose and for storing whey in used milk bottles (for making Ricotta, using in brine etc), especially for large jobs.
FYI, I've been using a ricotta draining mold to drain whey into and bail from, syphon hose will work much better, especially combined with a small draining mold or a small sieve.
PS: We have our hot water heater set to low so that it 1) saves energy and 2) minimizes chance of scalding as many small kids on out street. Thus if I got one of these, the 8" deep/7 US gallons/27 liters size, it would be tough to use tap hot water to heat the milk. The electric chafing dish warmer has only 450 watts, is that enough to heat the milk by itself and if it can, roughly how long, ie 1 hour or 6 hours? I assume with lid on to reduce evaporation heat loss but still has open sides and top for high radient heat losses. Thanks in advance!