How to reattach the lid of a
Pentair 2000 filter
This article will cover how to get the lid back onto a Pentair 2000
Series filter (also known as a Purex 2000 Series filter). Once the lid is
removed, even with a new gasket (Filter Lid O-Ring Red Line 071442), the lid
can be difficult to push down in to its proper place.
Note: This is not a how to guide this is a description of how we
would handle this specific case.
If you are unsure about fixing/repairing anything on your
swimming pool equipment hire a local professional.
Tools needed
- A swimming pool filter lubricant. Use only a lubricant made for
swimming pool filters since this has been tested not to have negative effects
on the rubber o-ring.
1) (This step is optional.) Use a lubricant to help the lid slide on. Magic Lube was used in this case. Spread it
around the exposed o-ring.
Note: The filter lid must be removed during this next step. If the
lid is already attached, never turn the system on without the filter band on
and tightened.
2) Fill the filter tank with pool water while the lid is removed. The
easiest way is to turn the pool pump on and wait for the tank to fill.
3) Now place the lid on top of the filter.
4) Turn off the pump.
Once the pump is turned off, the water draining out of the filter will naturally
create a vacuum pulling the filter lid down.
5) Push
the lid down in to the filter and in place, now that the vacuum force inside
the filter is also pulling the lid down it should be easier to set properly. Together,
the force should be enough to get the lid all the way down until the lid overlaps
the filter tank.
Note: If the lid cannot pushed completely down, do not turn the
system back on with the lid partially on. Remove the lid completely before
trying to refill the tank to restart the process.
6) In this specific case, the lid was down but a section of the o-ring
was sticking out of the side where the lid and tank meet. The handle of a screw
driver was used by moving it side to side over the exposed section to push the
o-ring back into its correct position.
In the end, the o-ring should not be visible.
7) If the lid is down far enough, you can place the filter band back onto
the filter and tighten it down.
8) Once the filter band is back on and tightened, the pool pump can be
turned back on.
Note: There is no predefined amount to determine if the band is on
tight enough. The best way is to note (take a picture of) the gap between the
two meeting ends of the clamp before removing it.
If this is over tightened the
bolt or the nut assembly can be stripped requiring one or both to be replaced.