Im looking to connect 2 tanks in the bed of my truck, i have the high pressure hose connected to a pressure relief valve and then a short hose with the tank fitting. I was told 2 different things, you guys that have done it please fill me in. One they said just a t with the 2 forklift tank fittings on one end and after the t puit the pressure relief valve. The other more cost way , i was told that a t and the 2 forklift tank fittings is fine but there is some special 100.00 safety valve that should be there. Please let me know, i only have one tank mounted now and i want to do 2 that are hooked up at one time b4 i wheel.