Exhibit No. 2 Form 8-K Dated April 16, 1998 Purus, Inc. File No. 0-22408 US$2,200,000.00 April 17, 1998 CASA SOLAZ, INC. 6% Promissory Note CASA SOLAZ, INC., a corporation duly organized and existing under the laws of the state of Nevada (hereinafter referred to as the "Company"), for value received, hereby promises to pay to PURUS, INC., a Delaware corporation, or its order, the principal sum of TWO MILLION TWO HUNDRED THOUSAND US DOLLARS ($2,200,000.00), on December 31, 1999 (the "Maturity Date"), upon presentation and surrender of this promissory note ("Note") at the offices of the Company at 17246 Quail Court, Morgan Hill, CA 95037, in such lawful money of the United States of America as at the time of payment shall be legal tender for the payment of public and private debt, and to pay at that time in like lawful tender interest on the unpaid principal at a rate per annum (calculated on the basis of the actual number of days elapsed in a 365-day year) equal to 6%, from and after the date of issuance or from the most recent date on which interest has been paid or duly provided for, as the case may be. This Note is subject to the following further terms and material provisions: 1. Prepayment. The Note is subject to prepayment at any time after the issue date, upon not less than 30 nor more than 50 days' notice by mail, in whole or in part, at the election of the Company. For a period of 15 days following the date of written notice of prepayment, the holder may apply any amount then owing on this Note to exercise of the Series A Preferred Stock Warrant issued by the Company to Purus, Inc., dated February 17, 1998 ("Warrant"), as provided in paragraph 7, below. On the date fixed for repayment, the Note shall cease to bear interest. Upon surrender of the Note for repayment in accordance with said notice of prepayment by the Company, the amount of principal and interest due shall be paid in cash or certified funds. If the Note is prepaid only in part, the holder shall present the Note to the Company for notation thereon of such partial repayment. The obligation of the Company to prepay the Note shall be evidenced by a resolution of the board of directors of the Company. 2. Satisfaction and Discharge of Note. This Note shall cease to be of further effect (except as to any surviving rights of conversion, transfer or exchange herein expressly provided for) when, (a) The Company has paid or caused to be paid all sums payable hereunder by the Company, including all principal amounts and interest accrued under the Note; and (b) All the conditions precedent herein provided for relating to the satisfaction and discharge of this Note have been complied with. 3. Security. This Note and the obligations represented hereby shall be secured by: (a) all of the assets of the Company pursuant to the Security Agreement dated February 17, 1998, given by the Company to Purus, Inc., and this Note and all obligations arising hereunder shall be deemed a "Secured Obligation" as that term is defined in the Security Agreement; (b) by all of the capital stock of all subsidiary corporations of the Company pursuant to the Pledge Agreement dated February 17, 1998, given by the Company to Purus, Inc., and this Note and all obligations arising hereunder shall be deemed an "Obligation" as that term is defined in said Pledge Agreement; and (c) by all of the capital stock of all subsidiary corporations of the Company pursuant to the Pledge Agreement dated February 17, 1998, given by the Company and Housekit Construcciones, S.A., to Purus, Inc., and this Note and all obligations arising hereunder shall be deemed an "Obligation" as that term is defined in said Pledge Agreement. The Security Agreement and Pledge Agreements referenced herein are collectively referred to as the "Security Documents". 4. Events of Default. "Event of Default" when used herein, whatever the reason for such event of default and whether it shall be voluntary or involuntary or be effected by operation of law pursuant to any judgment, decree or other order of any court or any order, rule or regulation of any administrative or governmental body, or be caused by the provisions of any paragraph herein means any one of the following events: (a) Default in the payment of interest on the Note when it becomes due and payable, whether at maturity, upon prepayment by declaration, or otherwise; (b) Default in the payment of the principal on the Note when due, whether at maturity, upon prepayment by declaration, or otherwise; (c) Default in the performance or breach of any covenant or warranty of the Company or any of its subsidiaries under this Note or the Security Documents (other than a covenant or warranty the default or breach of which is elsewhere in this section specifically dealt with), and continuation of such default or breach for a period of 60 days after there has been given to the Company by the holder a written notice specifying such default or breach and requiring it to be remedied and stating that such notice is a notice of default hereunder; (d) The entry of a decree or order by a court having jurisdiction in the premises adjudging the Company or any subsidiary of the Company a bankrupt or insolvent, or approving as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Company or any subsidiary of the Company under the Federal Bankruptcy Act or any other applicable federal, state, or foreign law, or appointing a receiver, liquidator, assignee, trustee, sequestrator (or other similar official) of any of the Company or its subsidiaries or of any substantial part of its property, or ordering the winding up or liquidation of its affairs, and the continuance of any such decree or order not stayed and in effect for a period of 60 consecutive days; or (e) The institution by any of the Company or its subsidiaries of proceedings to be adjudicated a bankrupt or insolvent, or the consent by it to the institution of bankruptcy or insolvency proceedings against it, or a filing by it of a petition or answer or consent seeking reorganization or relief under the Federal Bankruptcy Act or any other applicable federal, state or foreign law; or the consent by it to the filing of any such petition or the appointment of a receiver, liquidator, assignee, trustee, sequestrator, or other similar official of any of the Company or its subsidiaries or of any substantial part of its property, or the making by it of an assignment for the benefit of creditors, or the admission by it in writing of its inability to pay its debts generally as they become due, or the taking of corporate action by any of the Company or its subsidiaries in furtherance of any such actions. 5. Acceleration of Maturity. If an event of default occurs and is continuing then, in every such case, the holder may declare the principal and all accrued interest of the Note to be due and payable immediately, by a notice in writing to the Company of such default, and upon any such declaration, such principal and accrued interest shall become immediately due and payable. At any time after such declaration of acceleration has been made and before a judgment or decree for payment of money due has been obtained by the holder, the holder, by written notice to the Company, may rescind and annul such declaration and its consequences if all events of default, other than the non- payment of the principal or interest on the Note which have become due solely by such acceleration, have been cured or waived as provided below. No such rescission shall affect any subsequent default or impair any right consequent thereon. 6. Suits for Enforcement. If an event of default occurs and is continuing, the holder may, in its discretion, proceed to protect and enforce its rights by such appropriate judicial proceedings as the holder shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement under this Note or in aid of the exercise of any power granted herein, or to enforce any other proper remedy. (a) THIS NOTE SHALL BE DEEMED TO BE A CONTRACT MADE UNDER AND GOVERNED BY THE INTERNAL LAWS OF THE STATE OF CALIFORNIA. (b) THE COMPANY HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF ANY CALIFORNIA STATE OR FEDERAL COURT IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS NOTE AND THE COMPANY HEREBY IRREVOCABLY AGREES THAT ALL CLAIMS IN RESPECT OF SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH CALIFORNIA STATE OR FEDERAL COURT. THE COMPANY HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT IT MAY EFFECTIVELY DO SO, THE DEFENSE OF ANY INCONVENIENT FORUM TO THE MAINTENANCE OF SUCH ACTION OR PROCEEDING. (c) The Company irrevocably consents to the service of process out of any of the aforementioned courts in any such action or proceeding by the mailing of the copies thereof by certified mail, return receipt requested, postage prepaid, to it at its address set forth herein, such service to become effective upon the earlier of (i) the date 10 calendar days after such mailing or (ii) any earlier date permitted by applicable law. Nothing in this paragraph shall affect the right of the holder to bring proceedings against the Company in the courts of any other jurisdiction or to serve process in any other manner permitted by applicable law. (d) THE COMPANY AND HOLDER HEREBY KNOWINGLY, VOLUNTARILY, AND INTENTIONALLY WAIVE ANY RIGHTS THEY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED HEREON, OR ARISING OUT OF, UNDER, OR IN CONNECTION WITH, THIS NOTE OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN), OR ACTIONS OF THE COMPANY OR HOLDER. THIS PROVISION IS A MATERIAL INDUCEMENT FOR THE HOLDER ENTERING INTO THIS NOTE AND MAKING THE LOAN TO THE COMPANY EVIDENCED HEREBY. (e) The Company agrees to pay and hold the holder harmless from any stamp, documentary, intangibles, transfer or similar taxes or charges, and all recording or filing fees with respect to this Note or any payments to be made thereunder, and to reimburse the holder upon demand for all reasonable out-of-pocket expenses (including reasonable attorneys' fees and expenses) incurred by the holder in enforcing the obligations of the Company under this Note or in connection with any restructuring or "work-out" of any such obligations. 7. Warrant Exercise. Subject to, and in compliance with, the provisions contained herein, the holder of the Note is entitled, at holder's option, at any time on or before the Maturity Date (or in case this Note or some portion hereof shall be called for repayment prior to such date or there shall be a declaration of acceleration of maturity under paragraph 5, above, then until and including, but not after, the close of business within 15 days of the date of notice of repayment or the date of declaration, as the case may be), to apply all amounts then owing under this Note to exercise of the Warrant and purchase in accordance with the terms of the Warrant of fully paid and non- assessable shares of the Series A Convertible Preferred Stock of the Company. Exercise of the Warrant shall be effected by surrender of this Note, duly endorsed (if so required by the Company), to the Company at its offices set forth herein accompanied by written notice of exercise in the manner required by the Warrant. 8. Notices; Waiver. All notices hereunder shall be in writing or by telecopy and shall be sufficiently given to the Company or holder if addressed or delivered to them at the following addresses: If to the Company: Casa Solaz, Inc. Attn: Donald Winstead 17246 Quail Court Morgan Hill, CA 95037 Telecopy (408) 782-2198 If to holder: Purus, Inc. Attn: President 605 Tennant Avenue, Suite B Morgan Hill, CA 95037-5529 Telecopy (408) 778-3466 or at such other address as any party may designate to any other party by written notice. All such notices and communications shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; when received, if deposited in the mail, postage prepaid; when transmission is verified, if telecopied; and on the next business day, if timely delivered to an air courier guaranteeing overnight delivery. Where this Note provides for notice, such notice may be waived in writing by the person entitled to receive such notice, either before or after the date on which the person entitled to receive such notice and either before or after the event, and such waiver shall be the equivalent of such notice. 9. Restrictions. The holder of this Note, by acceptance hereof, agrees and acknowledges that: THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR UNDER THE SECURITIES LAWS OF ANY STATE. THESE SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE TRANSFERRED OR SOLD IN THE ABSENCE OF AN EFFECTIVE REGISTRATION OR OTHER COMPLIANCE UNDER THE ACT OR THE LAWS OF THE APPLICABLE STATE OR A "NO ACTION" OR INTERPRETIVE LETTER FROM THE SECURITIES AND EXCHANGE COMMISSION OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE ISSUER, AND ITS COUNSEL, TO THE EFFECT THAT THE SALE OR TRANSFER IS EXEMPT FROM REGISTRATION UNDER THE ACT AND SUCH STATE STATUTES. 10. Miscellaneous (a) The provisions of this Note and the Security Documents may from time to time be amended, modified or waived, if such amendment, modification or waiver is in writing and, (i) in the case of an amendment or modification, is consented to by the Company and holder and (ii) in the case of a waiver of obligation of the Company or compliance with any prohibition contained in this Note or Security Documents, is consented to by the holder. (b) No failure or delay on the part of the holder in exercising any power or right under this Note or the Security Documents shall operate as a wavier thereof, nor shall any single or partial exercise of any such power or right preclude any other or further exercise thereof or the exercise of any other power or right. No notice to or demand on the Company in any case shall entitle it to any notice or demand in similar or other circumstances. No waiver or approval by the holder shall, except as may be otherwise stated in such waiver or approval, be applicable to subsequent transactions. No waiver or approval hereunder shall require any similar or dissimilar waiver or regulatory approval thereafter to be granted hereunder. (c) Any provision of this Note or the Security Documents which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions of this Note or the Security Documents or affecting the validity or enforceability of such provision in any other jurisdiction. (d) The various headings of this Note and the Security Documents are inserted for convenience only and shall not affect the meaning or interpretation of the Note or the Security Documents or any provisions hereof or thereof. (e) This Note shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and assigns; provided, however, that the Company may not assign or transfer its rights or obligations hereunder without the prior written consent of the holder. (f) The Company hereby waives all requirements as to diligence, presentment, demand of payment, protest and notice of any kind with respect to this Note. All amounts owing hereunder are payable by the Company without relief from any valuation or appraisal laws. DATED this 17th day of April, 1998. CASA SOLAZ, INC. By /s/ Donald Winstead, President