Ballast tanks draining when trying to fill

[cman56]

Hi all,

I just bought an '07 Wakesetter 247. 4 ballast tanks on board. 

I can't seem to ever fully fill the ballasts. When I have the fill pump on, it seems when the tanks are about half full (as it shows on the ballast reading on the dash) water starts to drain out of the side of the boat. They drain from where they normally would with the drain pumps on, not the bilge.

I'm not sure why water is being forced out since they are only reading half full. Any one else experience this?

[wakesonthesnake]

I would visually check the tanks.  I would guess the water is coming out of the overflow/vent lines meaning they are full.  You can check if it is the vent or ballast empty thru hull on side of boat. The gauge floats are probably sticking or in some other way not accurate.

[cman56]

3 hours ago, wakesonthesnake said:

I would visually check the tanks.  I would guess the water is coming out of the overflow/vent lines meaning they are full.  You can check if it is the vent or ballast empty thru hull on side of boat. The gauge floats are probably sticking or in some other way not accurate.

Thanks for the idea. I'm at the boat right now and took the bow floor off to see the ballast. When the tank gets about half full water starts coming out the hull. It looks like the tanks is expanding to, as if the air inside it trapped and the therefore the pressure that's building with new water flowing in is forcing water out the drain

[csleaver]

See if the tank vent hose is clogged or kinked.