I have a TH,28', all of the tanks are located in front of the dual axles, 96+gal for the fresh, right in front of the axles, 47gal/grey and 50+gal/blk closet to the tongue.
I can have a tongue weight of 1700lbs, with full tanks, by loading the Honda Rubicon ATV back as far as possible,(750+lbs), I can change the tongue weight to 1500lbs.
For every 3 lbs added at the back ramp, I can change the tongue weight by 1 lb.
Tia,
Don