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                                  EXHIBIT 10.5

                         AMENDMENT TO THE PENTAIR, INC.
                  FOURTH AMENDED AND RESTATED COMPENSATION PLAN
                           FOR NON-EMPLOYEE DIRECTORS

         The Pentair, Inc. Fourth amended and Restated Compensation Plan for
Non-Employee Directors (the "Plan"), is hereby amended effective August 23, 2000
as follows:

         1.    Section 10 is deleted in its entirety and the following
substituted therefor:

         10.   Change in Control.

               (a)   Definitions.

                     (1)   "Change in Control" is a change in control of
                           Pentair as defined in the KEESA.

                     (2)   "KEESA" is the Key Executive Employment and
                           Severance Agreement between Pentair and key
                           executives, as approved by the Board effective
                           August 23, 2000.

               (b)   Effect on Directors or Former Directors. Upon a Change
                     in Control, and notwithstanding the benefit elections
                     previously made by the Director or former Director and
                     other Plan provisions to the contrary, a Director or
                     former Director shall receive all of his or her
                     remaining Plan benefits in a cash lump sum on the lump
                     sum date unless such Director or former Director timely
                     elects otherwise in accordance with subsection (c)
                     immediately following. The lump sum date shall be the
                     first business day of the third calendar month following
                     the calendar month in which such Change in Control
                     occurs; provided, however, for a Director in office as
                     of the date of the Change in Control, the lump sum date
                     shall be the first business day of the third calendar
                     month following the calendar month in which the Director
                     leaves office.

               (c)   Election to Forego Lump Sum. A Director or former
                     Director otherwise entitled to receive a lump sum
                     pursuant to subsection (b) immediately preceding may
                     elect to forego payment of the lump sum if he or she so
                     elects in writing and files such writing with the
                     Administrator no later than thirty (30) days before the
                     lump sum date. If a Director or former Director timely
                     elects to forego the lump sum payment, such Director or
                     former Director's Plan benefits shall be paid in
                     accordance with the Director or former Director's
                     otherwise effective benefit elections and Plan
                     provisions apart from this Section 10 other than Section
                     10(f).

               (d)   No Delay in Payment. Application of this Section 10
                     shall not delay the date for payment of benefits as
                     otherwise elected by a Director or

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                     former Director or as otherwise provided under the Plan
                     apart from this Section 10.

               (e)   Notice of Lump Sum Entitlement and Election to Forego
                     Lump Sum. No later than five (5) days following the date
                     of the Change in Control, the Administrator shall cause
                     a notice to be sent to all Directors or former Directors
                     to whom the provisions of this Section 10 may apply.
                     Such notice shall be sent in a manner reasonably
                     calculated to be actually and timely received by such
                     Directors or former Directors, and shall reasonably
                     inform such Directors or former Directors of the
                     provisions of this Section 10 and such Director's or
                     former Director's rights and entitlements hereunder. In
                     the event such notice is not timely sent as to a
                     Director or former Director, then at such Director or
                     former Director 's election the lump sum date and the
                     date for electing to forego such lump sum shall be
                     appropriately adjusted to reflect the time periods that
                     would have applied had such notice been timely sent.

               (f)   Treatment of Share Units. Upon a Change in Control, all
                     Share Units then allocated to the account of a Director
                     or former Director shall be converted into a deferred
                     compensation account maintained on behalf of and payable
                     to each such Director or former Director. The deferred
                     compensation account shall be initially credited with a
                     dollar amount equal to the value of the Share Units
                     immediately before the Change in Control and thereafter
                     will be credited with the dollar amount of Deferred
                     Compensation and Equity Compensation allocated, if any,
                     for periods after the Change in Control. Beginning with
                     the day immediately following the Change in Control, and
                     until the deferred compensation account as adjusted for
                     interest thereon is fully paid to the Director or former
                     Director, the unpaid balance of the deferred
                     compensation account shall be credited with interest.
                     The rate of interest so credited shall be the greater of
                     (i) seven percent (7%), compounded annually, and (ii)
                     the large corporate under-payment interest rate in
                     effect from time to time pursuant to and determined in
                     the manner prescribed under sections 6621(c)(1) and
                     6622(a), respectively, of the Internal Revenue Code of
                     1986 and any successor provisions thereto. For purposes
                     of applying clause (ii) immediately preceding, the date
                     of the Change in Control shall be deemed the applicable
                     date within the meaning of such section 6621(c).

         2. The foregoing amendment shall apply to all Directors or former
Directors under the Plan as of August 23, 2000 or thereafter.

                              --------------------

         The undersigned, by the authority of the Board of Directors of Pentair,
Inc., does hereby

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approve the form and content of this amendment to the Plan.

Dated:
       ---------------------          ------------------------------------------
                                      Louis L. Ainsworth
                                      Senior Vice President and General Counsel
                                      of Pentair, Inc.

         The undersigned, by the authority of the Board of Directors of Pentair,
Inc., does hereby execute the foregoing document for and on behalf of Pentair,
Inc. effective as of August 23, 2000.

                                      PENTAIR, INC.

Dated:                                By:
       ---------------------             ---------------------------------------
                                         Its:
                                             -----------------------------------

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                                  EXHIBIT 10.6

                         AMENDMENT TO THE PENTAIR, INC.
                OUTSIDE DIRECTORS NONQUALIFIED STOCK OPTION PLAN
              (AS AMENDED AND RESTATED EFFECTIVE JANUARY 15, 1998)

         The Pentair, Inc. Outside Directors Nonqualified Stock Option Plan (as
amended and restated effective January 15, 1998) (the "Plan") is hereby amended
effective August 23, 2000, as follows:

         1. A new Section 17 be and hereby is added to the Plan, as follows:

                  17. CHANGE IN CONTROL. Upon the occurrence of a Change in
         Control of the Company, as that term is defined in the Key Executive
         Employment and Severance Agreement ("KEESA"), as approved by the Board
         effective August 23, 2000, all outstanding options granted to an
         individual who is then an Outside Director shall, to the extent not
         then exercisable, become fully and immediately exercisable without
         regard to the time at which such options would otherwise become first
         exercisable under Section 5b of the Plan. Regardless of the manner in
         which payment for such options is made, however, no reload options
         shall be granted upon the exercise of options which have become
         exercisable by application of this Section 17. In the case of a
         conflict between this Section 17 and any other Plan provision, this
         Section 17 shall control.

         2. The foregoing amendment shall apply to individuals who are Outside
Directors on August 23, 2000, or thereafter.

                            -----------------------

         The undersigned, by the authority of the Board of Directors of Pentair,
Inc., does hereby approve the form and content of this amendment to the Plan.

Dated:
      ----------------------------     -----------------------------------------
                                       Louis L. Ainsworth
                                       Senior Vice President and General Counsel
                                       of Pentair, Inc.

         The undersigned, by the authority of the Board of Directors of Pentair,
Inc., does hereby execute the foregoing document for and on behalf of Pentair,
Inc. effective as of August 23, 2000.

                                       PENTAIR, INC.

Dated:                                 By:
      ----------------------------        --------------------------------------
                                          Its:
                                              ----------------------------------

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