Nothing is impossible...
Some things just require a little more planning and creativity. Replacing your water hoses only requires doing a couple of things: 1. measure the total length of hose you need for each section...buy it, plus an extra 2-3'. 2. When you buy the new hose, also buy as many male-male pvc connectors as you'll need (explanation follows) and some PVC cement.3. Remove all hose clamps...don't just loosen--REMOVE 'em. Remove the hoses from all fittings, faucets and the pump.Ok...now it starts to require a little thought...'cuz you're gonna pull the old hose out, and at the same time you'll be pulling the new hose through...so you have to decide where to start.4. Using one of the male-male connectors, put one end of the of new hose onto one of 'em (apply plenty of PVC cement first), and one end of the old hose on the other end (also using plenty of PVC cement.5. Drink a beer while the cement sets.6. Commence to CAREFULLY pulling hose.It won't be necessary to follow this procedure for some sections of the hose, 'cuz you can remove the old hose and then snake the new hose through without any problems...but this way works to change hoses in places you can't get to.