Just made my first all grain batch and I think there was a problem... Started with just above 7 gallons pre-boil. Ended with 6 gallons after 90 min boil. Amarillo Hop pellet additions were added directly to the boil (no bag or hop spider used) as follows: .67oz @ 60 mins, .88oz @ 20 mins and .83oz at 0 mins. Used immersion chiller and when I siphoned off, I only got 4.25 gallons of the 5.5 gallons needed before hitting a tremendous amount of hops at the bottom. I was sucking up so much hops that my filter screen kept clogging up. Is that normal? If not, any suggestions on what I need to do? Thanks so much in advance for any help.