Exhibit 22 Henkel Chemie Verwaltungsgesellschaft mbH Agreement to be Bound As of 31 December 2002 we, Henkel Chemie Verwaltungsgesellschaft mbH, acquired all 21,679,612 Ecolab Inc. shares directly owned by Henkel KGaA. In accordance with Section 5 (a)...

                                                                      Exhibit 00

Xxxxxx Xxxxxx Verwaltungsgesellschaft mbH


                              Agreement to be Bound

As of 31 December 2002 we, Henkel Chemie Verwaltungsgesellschaft mbH, acquired
all 21,679,612 Ecolab Inc. shares directly owned by Xxxxxx KGaA. In accordance
with Section 5 (a) (ii) of the Second Amended and Restated Stockholder's
Agreement dated as of November 30, 2001 between Ecolab Inc. and Xxxxxx KGaA (the
"Agreement") we herewith confirm and agree that we are bound by the Agreement.


Duesseldorf, as of 31 December 2002


Henkel Chemie Verwaltungsgesellschaft mbH


/s/ Xxxxxx Xxxx Xxxx       /s/ Xxxxxxxx Xxxxxxx
--------------------       --------------------
Xxxxxx Xxxx Xxxx           Dr. Xxxxxxxx Xxxxxxx
General Manager            General Manager