We have a 2001 bav 34 complete with hot water tank. If you look at the tank you will see that the plumbing is push fit plastic piping. Not a problem, except that the outlet pipe was bent into a right angle ( albeit with a seemingly large radius ) rather than using a 90 degrees connector.
The result was that the pipe split just where it exits the tank. 150 litres of water pumped into the bilge later you realise you have a slight problem.
It was minor to us as we were tied up in a marina at the time, but on a long offshore passage either the lack of water or the resulting large ammount sloshing around under the floorboards would have been a tad disconcerting. The connectors to do the job properly cost about £2 in B&Q.
I now carry a spare straight joint and a spare 90 deg joint
It may be worth having a look at yours.
Graham