We are using two.
As I say the only time they have pop is on two occasion. As i understand this can occasionally happen.
The problem is not so much the lid coming down although this is also a percieved problem (ie it could possible happen, but never has); no the reason the customer does not...
Let's be honest I am an electrical engineer, but I have been given a very mechanical problem to solve (and I cant do it).
My company produces large GRP tanks with lids that measure 1.3M by 2M, each lid wieghs 37Kg and are hinged on one side.
The problem is that at the moment we use gas...
