Hi everyone, and thanks again for your advice last season!! I saved a ton of money and headaches!!

I am getting ready to open up and clean my Hayward Perflex DE Filter (EC75A).

In the owners manual it states: open up, soak in 1:1 ratio of 20% muriatic acid, then flush with water.

My question is does the flex-tube assembly come right out? How long do I soak it for? And, what should I look for once the assembly is out?

Thanks.