Tilbury wall 22/2

I went to tilbury wall with my brother inlaw armed with lug,rag and mackrel , I set up my 2 rods cast both and waited, After about 1 min they where both at right angles , reeled in both snagged and both lost end tackle, :( . Start again cast out and the same happened, It went on like this for about one and a half hours untill we packed and went home without catching a fish ! At least i learnt something, Never go to tilbury wall on a 6.4 tide !