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.
Your situation in your area will change the economics of getting oxygen. The tanks are almost never lifted. They are rolled by tipping slightly and rolling along on the edge of the bottom. K-tanks are the most cost effective to refill mostly because they are the most used size. Here in the Seattle/Tacome area a K-tank costs about $190.00 to buy. I don't know the rental cost. I pay $14.00 per tank to refill and that's on a 'lampworkers/glass blowers' account that is used by a bunch of people all unrelated/unknown to each other.