Join Date: Oct 2008
My Motorhome: Hymer B644GL
Thanked 52 Times in 45 Posts
we have a very large bore hose for when you want to empty the tank which we use when needed, in that scenario we want to empty a quickly as possible, the scenario here is for when on a fully serviced pitch that has its own drain, meaning it's something that is connected and open for the length of the stay, whenever water goes down the sink it simply flows away down the pitches drain, there isn't a requirement for speed etc, and a standard hose will take far larger particles than the filter built into our internal plug hole. having said that we throw rubbish in the bin not down the sink.
i also find that a small coupling device and length of standard hose is far easier to carry than larger bore hoses, standard hose is far less bulky and can be found anywhere for peanuts. a plastic carrier bag with 10 or 15 meters of hose takes less space than our six foot large bore hose.