Would anyone be able to tell me what brand and model hand plunger tap is in a 2015 expanda 17.56-1
Ours needs parts but not sure of the brand amd model
Have a lookie here at Caravans Plus you should be able to ID yours...often a dismantle and application of some Vaseline to the plunger O ring will get things going again if your loosing prime , the seal needs to be lubed, they get dry and can't suck........but also check the hose connections underneath between tank and pump, doesn't take much for air to get in and thats it, no prime.
............ https://www.caravansplus.com.au/plumbing-supplies/water-pumps/hand/