Gravity Feeding is Illegal Here are some laws (regulations) which pertain to gravity feed fuel tanks, and why they are illegal. 49 CFR CH. The fittings through which fuel is withdrawn from a tank must be located above the noraml level of fuel in the tank when the tank is full.

Are RDS tanks DOT approved?

RDS Manufacturing 50 Gallon Aluminum Rectangular Transfer Fuel Tanks are made in the USA and are DOT approved for transferring diesel fuel, gasoline or aviation fuel. These tanks have fully welded seams and are 100% pressure tested before leaving the manufacturer.

How does a gravity feed auxiliary fuel tank work?

Gravity-fed auxiliary tank systems keep refilling your main tank as long as there’s fuel in the auxiliary. You won’t notice any reduction in your main tank until the auxiliary is empty. Electrical pump systems often come with a switch in the truck. You flip this switch to refill the stock tank when you see fit.

How does a transfer tank work?

Basically the transfer tank is to hold additional fuel which can be transferred when need. They can operate in a different manner and the two most obvious are: The fuel is transferred to the main tank /tanker truck then used. The fuel is used directly from the auxiliary tank.

Can you leave valve open on auxiliary fuel tank?

Works perfectly, just open the valve when you are low and at a rest stop and it goes from there. I did learn that you can’t just leave the valve open when you fill both tanks.

How many gallons of diesel can you haul without a HazMat?

Actually everyone is giving bad info here. Diesel fuel is exempt from hazmat regulations if carried non bulk (less that 119 gallon containers). There is no limit on the number of gallons of diesel fuel if it is carried in non bulk See 49CFR 173.150(f).

Do you need a hazmat endorsement to haul fuel?

The only fuel and service trailer that doesn’t require the driver to carry a CDL with HAZMAT endorsement. The Department of Transportation requires drivers that haul large quantities of diesel to obtain a state-issued CDL with a HAZMAT endorsement.