Vacuflush Rinse

I have a 2002 400ss and am having issues when I try to rinse out my holding tank after I pump it out. No issues with the pump out, but when I try to put a hose in and flush it the water backs up, almost immediately, and comes out onto the platform. Don't have a macerator and the line looks to be a smooth transition into the black water tank. Wondering if anyone has the same issue or if it is OK to run a clean out snake down the pump out entry to see if by chance there is something clogged?

Thanks,
Pepper

Check to make sure your vent is not clogged. Forcing water into the tank requires the air you are displacing to vent. If the vent is blocked then you will have a geyser.

If I am not mistaken-some SS owners had issues with the fill being below the tank and thus backing up. If it pumps out, I doubt it is clogged....

I will try to find those threads or try searching as well.

I would not snake just yet !

Make one of these and you will be able to back fill. Works like a dream

mark

yup that's it! thanks....