After 3 years mine developed a leak under the van. Turns out the rubber hose joiners had all cracked, & the rubber pump bracket had disintegrated as well. Replaced joiners with new 4mm hose (not easy to find in country garages. Works well now.

Our hoses were of similar age and I was able to get our hose from a Repco parts store.

Much happier now as the hose is far better quality.