Like many others, the water pump on my 2020 Ducati V4 went out and began to leak out the weep hole. The problem is that the oil, or coolant, depending on which side of the seal fails, leaks into the V of the engine. That causes a mess and can be difficult to trouble shoot which side of the seal is failing. So I've modified the stock cases to allow for vent/drain hoses to be installed to better assess which side of the seal has an issue, if or when, it happens again.