Anyone know what size the holding tank is on the 358?

Anyone know if there is anyway to get at the tank to install a level indicator or gauge??

I've wondered the same question. I presume it is a 30-35 gallon capacity like the water tank (35 gallons).
I also presume that the holding tank and water tank is under the cockpit area beneath all those screws.
Maybe Bill, "43Thunder" can enlighten us.

Adam

I believe that the tank is 25 gallons. I had Sonic put a gauge
on to the dash for holding and fresh water. I wouild call Fred and see if he could
supply a setup for you .it is very handy.

YES

I was told by Jay Ross back in 2001 the holding tank on my 358 was 15gals.
The tank can be accessed from the cabinet the head(the access plate is under the a/c unit if you have a/c). Hope this helps.

i have a new 358 - 05 and the sewage tank is 35 gallons and on the sstarbert side by the drivers seat if you look in the storage compartment its in there covered by the carpet. hope this helps.

scott...

Scott Haven?
I would like to talk to you asap.
Please supply your email so I my get in contact with you. Boyce sent me.
Thanks
Steve

On my 04 31ss i do not know the size but i had a tank moniter installed that i bought from boat us this week. My tank in behind the rear starbord storage door and it cost more to have it installed $166.00 than i paid for the moniter $114.00. I put the display next to the head above the storage compartment.

Cass