Fresh water flushing ? Always a good idea..
As for the 2nd bilge pump to make it possible drain water from the lowest possible point of bilge? That's a great idea too. But instead of using another free thru hull I used that option on my boat by adding a "Y" connection and manual valve...
I always use the smaller pump for bringing the water to the lowest level. In case of emergency I will switch my manual valve on Y connection and run my 2000GPH pump...
Thank God I never need to do that until now!
Hopefully I never use the larger one!
As for the 2nd bilge pump to make it possible drain water from the lowest possible point of bilge? That's a great idea too. But instead of using another free thru hull I used that option on my boat by adding a "Y" connection and manual valve...
I always use the smaller pump for bringing the water to the lowest level. In case of emergency I will switch my manual valve on Y connection and run my 2000GPH pump...
Thank God I never need to do that until now!
Hopefully I never use the larger one!