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 average cost to refill a propane tank will depending upon the size of the tank, the geographical location, and the company doing the job. On average, a 10 pound tank is going to cost anywhere from $12 to $22 per tank. A 20-pound tank can cost upwards of $29 to $40 per tank to refill. A 100-pound tank can cost upwards of $65 to as much as $80 per tank. This is much cheaper per pound and will last a lot longer. Keep in mind that most stores will have a limit on the amount of propane that they can refill at any given time.