One Ballast Pump for 2 tanks?

[MCVOLS]

Is anyone using one pump to fill two factory hard tanks? My Stbd pump is out, and it is mounted right beside my port pump, and I was thinking about using a Y valve to fill / empty both tanks, at least until I can get a new one.

Anybody doing this, or is it even possible with how the pumps work?

[CantRepeat]

I use a T valve from wakemakers to fill my starboard hard tank or my port surf sack.

[G-Star]

I use a 3-way valve to fill/drain either the KGB or the aftermarket IBS under the bow seats. It works well, but can be a bit slow when using both ballasts.

3-way/Y valves aren't terribly cheap. You're probably best off just buying the new pump rather than trying to re-plumb to temporarily use a Y-valve. My $0.02.

[JRW160]

I use a 3 way ball valve to fill my kgb and bow filler sac. The only drawback is that it takes longer.