Later year 303 rls grey tanks individual capacities

[Malco1]

I can’t tell you for sure how they are supposed to be divided but I can tell you what I actually get in mine. Hope this helps a little.

Holding Tank Sizes
Fresh
1/3 - 11
2/3 - 25
Full - 40
Overflow - 52

Gray 1 (Bath)
1/3 - 9
2/3 - 21.5
Full - 30
Max - 35

Gray 2 (Kitchen)
1/3 - 6.5
2/3 - 11
Full - 24.5
Max - 28

Black
1/3 - 9
2/3 - 20.5
Full - 30.5
Max - 41

On the same subject, but a little off. I was wondering if you add a valve at the sewer connection and leave both grey water valves open will the grey water tanks equalize?

[Justa5th]

On the same subject, but a little off. I was wondering if you add a valve at the sewer connection and leave both grey water valves open will the grey water tanks equalize?

I did add a valve mainly because I was getting a little residual liquid when I removed the cap. I have not tried equalizing the tanks but it should work from what I have read here.

[livinthelife]

On the same subject, but a little off. I was wondering if you add a valve at the sewer connection and leave both grey water valves open will the grey water tanks equalize?

Only if the two grey water tanks are on the same level (some rigs they're not).