Cheers for the info guys.
I took the wooden flooring out yesterday and fitted the tank using 4 x 300lb ratchet straps, using the securing rings in the floor.
Using these should give me about 600kg securing weight.
I will get these replaced end of the week with bigger ones i think, just to be one the safe side.
Haven't got any room left in the van now all my gear is in. Haven't even got room to secure hose reel so this is going to have to be left loose.
Was going to sort straps out today but been sat at A&E all day with my lad.
Bloody idiot managed to snap his left arm right across below the elbow.
Craig