up vote 0 down vote. You can nest up to 7 valid or invalid entries. If you need to have more than that you should perhaps designate a column for your black list of entries that you can add to when an occurrence causes a count that you don't believe should be valid.
So how much does a float tank cost? Float tank prices vary widely depending on the size and the features of the float tank or pod you want to buy. Expect to spend anywhere from $12,000 to $40,000 to buy each commercial-grade float tank needed in your spa.
Day rates: Jack-ups and floaters. Drillships experienced the maximum fall of 25% in day rates compared to same period last year. The average day rate of drillships in September 2015 was $361,861, compared to $359,587 in the previous month and $370,631 in September 2014.