Davino
If you need it for a fast filling transfer pump, what I did was get a ball which grebils and rats play with, it already has holes in it and has a small ball on the inside, this acts as a weight and helps to kept the hose at the bottom of the barrel, though one of the holes ( you might need to enlarge the hole if your using 32mm hose) put the hose in then wrap a piece of tights around secure and with a plastic tie.