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.
A higher floating dock more in line with pontoon boats and ski boats. 6. Drums are much less Expensive â Brand new rectangular dock floats can cost anywhere from $110-140 not including shipping. A brand new 55 gallon drum is only about $50 and used drums are almost always available in the $5-15 range.7.rums are much less Expensive â Brand new rectangular dock floats can cost anywhere from $110-140 not including shipping. A brand new 55 gallon drum is only about $50 and used drums are almost always available in the $5-15 range. 7.