HWH leveler Hose burst

I would inspect the hoses for small bubbles/bulges in the line. IF no bubbles/bulges, I would not replace the other hoses. "Most" RV shops that have worked on HWH over the years, have a portable line swedge tool (we do). You can either make and replace the complete hose from pump to jack or replace the line from the jack to about 1 foot past the failure if the rest of the hose shows no signs of swelling or bubbles. You do NOT state if Diesel Or Gas chassis. Gas Chassis is easy to replace the complete line to the rear. Diesel chassis means that the hose from the fuel tank area to the rear axle goes thru the INSIDE storage frame with a plastic cover that hides the hoses and electrical lines. NOT a quick easy job. Doug