There is a supply pipe that comes out of the seive tray which looks like it supplies water to the middle and upper spray arms. It pops out of its housing in the sieve tray every time we use the machine and the dishes don’t get cleaned properly as once it is dislodged, it blocks the bottom spray arm from spinning and the other 2 spray arms probably don’t get the water supply they need. Looks like the side clips on the supply pipe head have worn out. Is this a replaceable part? Do you know what piece of the machine I am talking about? Thanks for the help. Geoff.