According to the book Historical Sites of Warren County, the township was named for Theodorus Jacobus Frelinghuysen, a minister and theologian of the Dutch Reformed Church who came to New Jersey in 1720.
The typical 12' x 24' rectangular (288 sq.ft. of water surface area) concrete pool will cost around $72 per square foot.
Gunite Support: Gunite is concrete sprayed on at high pressure. Cutoff pieces of new construction drywall can be used as forms to support gunite as it is being sprayed. A swimming pool construction company uses new cutoffs for this purpose, in sizes from 4 x 2 ft to 4 x10 ft, and thickness of 1/2 to 3/8 in.