Tank Owner’s Manual Pg. 13 of 23
9/26/05 Rev. D
Gasket ring
4.3 Installation/Removal of Manway Cover 4.3.1 Removal:
• Drain the tanks. See section 4.2 for instructions.
• Remove one yoke bolt and yoke. This will require a 1
1/8” wrench. Loosen the second bolt, but do not
remove the second yoke.
• Remove cover from tank. Rotate remaining yoke90°
and push cover into tank. Turn the cover so that it will
pass through the manway opening and remove the
cover. Make sure the manway gasket is with the cover.
If not, look for it on the manway opening or inside the
tank.
4.3.2 Installation:
• Ensure there are no tools, construction materials, or
foreign objects in the tank.
• Clean the sealing surfaces of the cover and manway opening. Make sure they
are free of dirt and debris.
• Install gasket ring on manway cover. See picture at
right for correct location.
• Maneuver the cover back into the tank so it fits back in
the manway opening. Follow removal directions in
reverse order.
• Install yokes, bolts, and washers. Make sure the yokes
are in the proper locations. See picture at right.
• Snug yoke bolts. Tighten bolts one full turn past hand tight. If manway leaks during
refilling of system, tighten bolts in quarter turn increments until leak stops. After filter
is at operating pressure, yokes will be loose due to internal pressure. Snug bolts until
yokes no longer move. DO NOT exceed 15 ft/lbs of torque.
The sand media in the filter should be removed when:
• Media bed has become contaminated. The media bed can become contaminated
due to the introduction of an unwanted substance into the water, such as fecal
matter, chemicals, etc. While the filters will take out the particulate matter of the
contaminate and prevent it from returning to the body of water, the contaminate will
become embedded in the media. This can affect pool chemistry.
Correct yoke orientation
*Manway cover may differ
from picture below