Manual

12. ADDING FILTER SAND: Remove upper tank shell by first loosening the flange bolts
around the center of the tank. To equalize flange stress, loosen bolts alternately
(opposite sides of the tank). Remove all bolts. Carefully lift the upper tank shell
straight up, using care not to damage the cord ring seal around the flange. Inspect
the underdrain to be sure all parts and connections are secure. Fill the sand filter
about one-third to half full with clean water. Then, slowly add the appropriate
amount of sand (see page 1). Spread the sand level within the tank. Clean the
flange surface and ring seal of all sand and dirt. Do not lubricate the ring seal.
Lower the upper tank shell onto the lower shell. Install and tighten flange bolts
alternately (opposite each other), not one after the other in a circular motion. For 20-
inch tank diameter, tighten to 20 ft.-lbs. torque; For 24 & 30-inch tank diameters,
tighten to 30 ft.-lbs. torque. Do not over-torque.
13. Check the controller settings (automatic systems only). Typical settings:
• Pressure differential – Factory pre-set only: 13 psi (0.9 bar) on 20-inch and
24-inch FTS Systems; 16 psi (1.1 bar) on 30-inch FTS Systems.
• Backwash Duration – Typical setting is 3 minutes. May be adjusted after
inspection of backwash flow in order to insure proper cleaning and to
minimize liquid loss.
START-UP PROCEDURES
1. Start the pump and inspect all piping/access connections for leaks. Shutdown to
correct any problems.
2. An automatic air relief valve will vent all air from the system.
3. Check FTS System inlet and outlet pressure gauges (mounted onto the controller
panel). Proper operating parameters will result in an inlet pressure of approximately
20-27 psi (1.4-1.9 bar) above the system flow pressure to the FTS System and an
outlet pressure of 13-24 psi (0.9-1.7 bar) above the system flow pressure to the FTS
System. NOTE: If pressure gauges read higher
, check for artificial backpressure,
such as a closed isolation valve or other restriction downstream of the FTS System.
If pressure gauges read lower
, check downstream piping & connections for leaks,
open discharge, etc. Add valve to the outlet to create backpressure if needed.
4. Initiate a backwash cycle using the manual override on the controller (automatic
systems only) or the manual valve at the backwash control supply line (manual
systems only; see installation illustration). This should interrupt flow to the sand
filter’s inlet and either redirect flow to the filter tank’s outlet (when using system
flow
for backwashing) or introduce the alternate water source flow to the filter tank’s outlet
(when using city water or alternate source for backwash flow).
5. Flow through the sand filter to system use will be interrupted during the backwash
cycle. Instead, water will discharge out of the backwash line.
6. Capture a sample from the backwash flow and determine the water clarity. Proper
backwash volume will result in only a trace of media sand also being backwashed
(about 6-10 grains of media sand at a given moment during backwashing).
Adjust the
backwash throttling valve until this condition is met. Lock the backwash throttling
valve to this position. Discontinue the manual backwash cycle. System flow will again
pass through the FTS System.
7. Inspect the operating cycle and be sure all operating conditions are normal.
Please refer to the Triton Installation & User's Guide included.