Model 200 POWER LINE Pistol

Just a thought on Daisy 200 Power Line Pistol!  I bought one at a show (in the last three days) for $25.00 and it was not working.  When the puncture seat was removed from the action, the washer inside looked somewhat crushed from the cylinder pressure.  It looks like a teflon material so I turned it around to re-install it in the seat..  Before that I took a scribe and punched a hole in a piece of 3M electrical tape.  The size was made as close as possible using scissors to cut the tape while it was on the scribe.  Removed the cut piece and the washer was placed on the scribe behind the tape.  Just push the scribe through the hole in the puncture seat and slide the tape as low as you can and then push the washer into the hole covering the tape (with sticky side hitting the base of the puncture seat).  This stopped all leaking and I am on to another problem with the elevator sticking out after firing around 30 or so rounds.