This is a very interesting topic. If there was someway to accurately estimate the true impact this has had on the industry from all of the facility's point of view this would be an overwhelming example of the danger of government legislation without consultation.
According to www.aquaticnet.com/media-statistics3.htm there are 270,000 commercial pools in the US. Now, I have no idea how they came to this number or what their definition of a commercial pool is but let's assume this were to accurately encompass all public pools, municipalities, Y's, hotel pools (cringe), etc. Now, if we look at costs to our own pools and look to our colleagues to generate an average per pool the number is staggering. I'm not even going to try to estimate a number because I know that there are thousands of different configuarations of pools that needed to be renovated thousands of different ways.
Don't get me wrong I know that suction/entaglement entrapment has been an issue, in residential pools and hot tubs, but can anyone tell me how many incidents there have been in a commercial pool with dual main drains?
Thousands die in swimming pools every year from lack of swimming skills and education (parental education most importantly). What kind of a world might we live in if this same initiative, and money, were put towards some kind of national learn to swim initiative? One can only hope...