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Please contact 1-877-297-6069 for further assistance.
Installation
1
PREPARING FOR INSTALLATION
□ This 24 in. septic tank riser cover (A) will t most 24 in.
installed risers. Test t the riser cover (A) to ensure it is
correct for your riser.
□ Clean the sealing surface of your riser.
□ Remove the hardware pack containing the four square-drive
screws (B) from the back of the riser cover (A).
A
B
2
INSTALLING THE RISER COVER
□ Place the riser cover (A) on your riser. Ensure the rubber seal
is making a seal with the top of your riser.
□ Using the four screw holes in the riser cover (A) as a guide,
drill four 3/16 in. holes through your riser.
NOTE: Some risers may require the use of holes other than the molded
screw holes in the riser cover. For these risers, use the two additional
drill points molded on the top of the cover.
□ Install the screws (B) with a #3 square driver.
□ For access to your riser, remove the screws (B) and cover (A),
then reinstall.
A
B
Safety Information
WARNING: Failure to properly secure the riser cover will create a serious safety risk. Follow these installation instructions carefully.
Warranty
This product is warranted to the original consumer purchaser to be free from defects in material and workmanship for a period of one year from the date of
purchase. For additional details and questions, please contact Everbilt Customer Service at 1-877-297-6069.
TOOLS REQUIRED
Drill with 3/16 in. drill bit #3 Square Driver
PACKAGE CONTENTS
A - Riser Cover x1 B - Square drive screws x4
Use and Care Guide
1.25 in. and 1.5 in. ABS In-Line
Sump Pump Check Valve
Item # 1001091718
Model # THD1020
WARNING: Always disconnect power to your pump and release system pressure before servicing.
NOTE: For use with residential sump pumps only.
Maximum 12 PSI.
1. Unplug your pump.
2. Disconnect the discharge pipe from your pump below
your existing check valve.
3. Drain the discharge pipe above the check valve into
your basin or a bucket and remove the old check
valve.
4. Loosen all four clamps on your new check valve.
5. For 1-1/2” discharge piping, ensure the space between
the two pipe ends is 5”. For 1-1/4” piping, the space
should be 4-1/4” and the adapters must be inverted.
6. Install your new check valve, with the flow arrow
pointing away from the pump, by inserting the two
pipe ends into the flexible adapters. The flow arrow
should be on top for horizontal installations.
7. Position the check valve assembly as shown, and
tighten clamps. Do not exceed 15 in-lbs. Do not
overtighten.
8. Plug in your pump. Cycle your system a few times and
check for leaks. Retighten any clamps if necessary.
Do not exceed 15 in-lbs. Do not overtighten.