Grey/black tank volumes

[johnf]

Where can I find the volume of my Grey and Black tanks in a 2009 2900mk. I have checked the tools link for a manual with this information but have not been able to find it ?

 

[danemayer]

Hi Johnf,

Sometimes you can find old information on the internet archive. Looks like the black tank holds 40 gal and gray is 80. If you have two gray valve handles, the 80 gal capacity would actually consist of two 40 gal tanks.