Drain hose leaking
You can make a patch of expoxy to cover the leak. You could get a small piece of sheet rubber such as from an inner tube and use a hose clamp to hold it over the leak.
If you can't get to the leak for example it iswhere the pipe goes through the wood subfloor, then there is no way to stop the leak prior to replacing the pipe.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.