lmao i was given 2 barrels for nowt made of same stuff & thickness as proper tanks so i just wondered if i could strap em in & baffle em myself !!! i couldnt as was pointed out so im all strapped & safe now __ i've a mate who has a 650 ltr in the back of his van that just sits there no straps or bolts, he gets 2 other lads to use that van though