24K gal (est.), IG gunite, Pentair Sand Dollar SD-80 sand filter, 3/4 HP Sta-Rite single speed pump, TF-100 test kit, IG spa, Kreepy Krauly Letro Legend Pressure Side Pool Cleaner, Polaris booster pump, Teledyne Laars Model ESC pool heater
Pool surface is all original AFAIK and I'm assuming it was built in 1991 with the house.