The document is an installation, operation, and service manual for the AQUATECH FNS series of diatomaceous earth (D.E.) filters designed for swimming pools and spas. It covers initial setup steps such as checking carton damage, leveling the unit on a concrete slab, assembling the valve to the tank with lubricated O-rings, and connecting piping. The guide emphasizes safety precautions regarding pressure release before opening clamps and proper air bleeding procedures.
| Recommended D.E. for FNS 24 | 25-3.6 pounds |
|---|---|
| Recommended D.E. for FNS 36 | 3.5-5.5 pounds |
| Recommended D.E. for FNS 48 | 6-7 pounds |
| Recommended D.E. for FNS 60 | 6-9 pounds |
Never operate the filter without a D.E. charge for more than two minutes.
T-Bolt nuts must be tightened to 60 inch lbs of torque.