I give up, 4 gallons of acetone soaking for 2 weeks, a week in a radiator shop in the hot tank and another day full of muratic acid. So far about $150 in materials not to mention the time without a running car. I looked in it today with a lighted fiber optic scope and to my dismay, more loose lining that is still peeling. I'm done. I found a good tank for a reasonable price and I'm going that direction. NEVER USE POUR IN TANK LINING!!!!!!