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.
The base price for float glass, which is clear window glass, is about $12 per square foot in 2013, and the price increases with every feature you add. Tinting adds from $5 to $7 per square foot, tempering adds about $2. Double pane glass is priced separately. If you add the cost of the glazing compound and caulk, the cost to replace a 2-by-2-foot pane of glass would range from about $60 for a clear pane to about $100 for a tinted pane of tempered glass. Don't forget to allow money for paint if you have to make repairs to the frame.