1) Trying to save $15,000 in going with the low bid liner installer eventually cost an owner $1.3M when over 100 holes were found in 1.25 acres of liner, about one sixth of the total liner area. A large development project was considerably delayed until the liner could be replaced. 2) A chemical resistance test ($10,000 max) was suggested by the liner installer and manufacturer for several lined basins in a mine processing plant. The engineer declined to do the test. Many liners failed, resulting in extensive construction delays and litigation costing several millions of dollars. Lessons learned? A few dollars of prevention are better than a cure costing millions. But, of course, this always happens to someone else. Then again, you are someone else to someone else.