[EZclean]

i dunno what to get.
whats the real difference apart from the obvious. one stands up one lays down
 

[AJ]

Always had lay flat (2 x400). Thought I always liked them, but I've just  realised that I don't. They take up the whole of the floor space so you have to lift everything up higher to get it in the van on top of the tank.
Also, Cos the footprint area of the tank is bigger you get more sloshing around.
+ points, lower centre of gravity, weight is more evenly spread so its probably better for cornering.

[dave.e]

Always had lay flat (2 x400). Thought I always liked them, but I've just  realised that I don't. They take up the whole of the floor space so you have to lift everything up higher to get it in the van on top of the tank.
Also, Cos the footprint area of the tank is bigger you get more sloshing around.
+ points, lower centre of gravity, weight is more evenly spread so its probably better for cornering.

Hi AJ i use 2x 350lt upright tanks and i don't know thay are there best move i ever made

[steve m]

if you have a lay flat tank in a small van it will distribute the weight evenly so you can have a bigger tank.