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.
As opposed to a traditional tank storage water heater which uses a steady supply of electricity to store and constantly heat water, the tankless models only heat water as necessary. The average cost for a propane powered single-point tankless water heater system will be $1,500 - $2,000. Tankless units can be installed on the interior or exterior of the building near the water use point and no more than 50 ft. from an adjacent power source (typically requiring 220 volts).