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.
What is floating? A float tank is a small shallow pool filled with water nearly saturated with Epsom salt, so it's dense like the Dead Sea. You float completely effortlessly. The tank is kept warm, body temperature, and it's enclosed so it's completely dark and quiet. It's your own private world. It's utterly relaxing.