My business was in full swing back then and M-F and Calhoun's were the absolute best plastic's available at the time. Was going through 25-30 gallons a week hand pouring only...no injecting then a sudden change occurred with Calhoun's plastic and its shipping container's around 2003....the unusable foaming Calhoun's plastic, with a HUGE!!! memory problem cost me 250,000 4" worms not to mention all the back and forth with the product and I still ended up stuck with 10 gallons that they refused to take back. Just left a very bad taste in my mouth.....250,000 4" worms I had to repour.....for free .....