While doing service on the equipment this past weekend. I noticed just a slight sticky film on underside of mower. After a closer look its seems that the bottom seal of the left hand pump must be leaking ever so slightly. Not enough to drip, but just enough for debris to cling. Just wondering has anyone ever attempted to put a seal kit in one of these pumps. At $450.00 each I would much rather try a $20.00 seal kit. The pump works fine, just trying to avoid what is comeing if I dont fix it. Down time kills this time of year. Any info would be greatly appreciated.