I was drilling a hole for the overflow and was impatient. I pushed too hard instead of letting the hole saw do the work and crack the back of my acrylic tank. It's about a 11 inch crack 4-5 inches down from the top on the back side. Can I repair this by using weld on and a large piece of acrylic that covers the crack or am I at risk for a failure in the future? I'm leaning towards buying a new tank for peace of mind. Just really frustrated as this was the last step in my new tank build after building a stand and hood, as well as gathering all the equipment for it. Thanks in advance for the opinions.