EXHIBIT 10.45
                                  -------------

                           PARTIAL GUARANTY AGREEMENT
                           --------------------------


     WHEREAS,  MR.  EDWARD  KIDSTON  (the  "Guarantor")  has agreed to partially
guaranty  certain  obligations  of  ARTESIAN  DIRECT  HOLDINGS  CORPORATION,   a
Washington corporation ("Artesian"),  owed to CELERITY SYSTEMS, INC., a Delaware
corporation   ("Celerity"),   under  a  Financing   Agreement  (the   "Financing
Agreement") of even date herewith between Artesian and Celerity.

     NOW,  THEREFORE,  in  consideration  of the  benefits  to be derived by the
Guarantor under the Financing Agreement and certain other agreements executed in
connection  therewith  between the Guarantor  and  Artesian,  and other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the undersigned hereby unconditionally guarantees to Celerity, and
its successors, endorsees, transferees and assigns the punctual payment when due
(as more particularly  described herein),  whether by acceleration or otherwise,
and at all times thereafter,  of all obligations (the "Obligations") of Artesian
to Celerity under the Financing Agreement.

     If Artesian fails to provide all or any portion of the Purchase  Commitment
in  accordance  with  Section  1  of  the  Financing   Agreement  and  does  not
beneficially  own shares of  Celerity  common  stock  sufficient  to make up the
shortfall under the Purchase Commitment at that time, then the Guarantor agrees,
at his option and within twenty (20) days after written  demand by Celerity,  to
either (i) deliver to Celerity up to 2.4 million shares of Celerity common stock
then owned by the Guarantor, or (ii) pay Celerity up to a maximum of $750,000 in
immediately available funds; provided that the Guarantor's guarantee obligations
hereunder  will  be pro  rata,  in  proportion  to the  amount  of the  Purchase
Commitment (as defined in the Financing  Agreement) not fulfilled.  For example,
if Artesian  only  purchased $5 million of Products (as defined in the Financing
Agreement) from Celerity (i.e., 50% of the Purchase Commitment), and Artesian no
longer  owned  sufficient  shares of  Celerity  common  stock to make up for the
shortfall,  then the Guarantor shall, at his option,  within twenty (20) days of
the date of demand by  Celerity,  either (i)  deliver to  Celerity  1.2  million
shares of Celerity  common stock owned by the  Guarantor or (ii) pay $375,000 to
Celerity.

     The undersigned  consents that, at any time, and from time to time,  either
with or  without  consideration,  the whole or any part of any  security  now or
hereafter held for any Obligations may be substituted,  exchanged,  compromised,
impaired,  released, or surrendered with or without  consideration;  the time or
place of payment of any Obligations or of any security thereof may be changed or
extended,  in whole or in part; Artesian may be granted  indulgences  generally;
any of the provisions of any note or other instrument evidencing any Obligations
or any security  therefor may be modified or waived  (except for the  provisions
relating  to  Artesian's  obligations  to deliver any shares held at the time it
fails  to  fulfill  all or any  portion  of the  Purchase  Commitment,  as  more
particularly  described in Section 4(b) of the Financing  Agreement);  any party
liable  for  the  payment  thereof  (including  but  not  being  limited  to any
co-guarantor) may be granted indulgences or released; and neither termination of
existence,  bankruptcy  nor lack of  authority  of Artesian or the  undersigned,
shall affect the continuing obligation of the undersigned, all without notice to
or  further  assent  by  the   undersigned,   who  shall  remain  bound  hereon,
notwithstanding any such exchange,  compromise,  surrender,  extension, renewal,
acceleration,   modification,  indulgence,  release,  discharge  or  accord  and
satisfaction.

     The undersigned expressly waives: (a) notice of acceptance of this guaranty
and of all extensions or renewals of credit or other financial accommodations to
Artesian; (b) presentment and demand for payment of any of the Obligations;  (c)
protest and notice of dishonor or of default to the  undersigned or to any other
party with  respect to any of the  Obligations  or with  respect to any security
therefor;  (d) any  invalidity  or disability in whole or in part at the time of
the  acceptance  of,  or at any time  with  respect  to,  any  security  for the
Obligations or with respect to any party primarily or secondarily liable for the
payment of  Obligations  to  Celerity;  (e) the fact that any  security  for the
Obligations  may  at  any  time  or  from  time  to  time  be in  default  or be
inaccurately estimated or may deteriorate in value for any cause whatsoever; (f)
any diligence in the creation or perfection of a security interest or collection
or protection of or realization  upon the Obligations or any security  therefor,
any liability  hereunder,  or any party primarily or secondarily  liable for the
Obligations  or any lack of  commercial  reasonableness,  except  to the  extent
required by  applicable  law, in dealing with any security for the  Obligations;
(g) any duty or  obligation  on the part of Celerity to ascertain  the extent or
nature of any security  for the  Obligations,  or any  insurance or other rights
respecting such security, or the liability of any party primarily or secondarily
liable  for the  Obligations,  or to take any  steps or  actions  to  safeguard,
protect, handle, obtain or convey information respecting, or otherwise follow in
any  manner,  any such  security,  insurance  or other  rights;  (h) any duty or
obligation  of  Celerity  to proceed  to collect  the  Obligations  from,  or to
commence an action against,  Artesian, any other guarantor, or any other person,
or to resort to any security or to any balance of any deposit  account or credit
on the books of Celerity in favor of Artesian or any other  person,  despite any
notice or  request of the  undersigned  to do so; (i) the right to assert any of
the  benefits  under any statute  providing  appraisal or other rights which may
reduce or prohibit any deficiency  judgments in any foreclosure or other action;
(j) all other notices to which the undersigned might otherwise be entitled;  and
(k) demand for payment under this guaranty.

     THIS IS A GUARANTY OF PAYMENT AND NOT OF  COLLECTION.  The liability of the
undersigned on this guaranty  shall be continuing,  direct and immediate and not
conditional  or  contingent  upon  either the  pursuit of any  remedies  against
Artesian or any other person or foreclosure  of any security  interests or liens
available to Celerity, its successors, endorsees or assigns. Celerity may accept
any  payment(s),  plan  for  adjustment  of  debts,  plan of  reorganization  or
liquidation,  or plan of composition or extension  proposed by, or on behalf of,
Artesian or any other guarantor  without in any way affecting or discharging the
liability of the undersigned  hereunder.  If the Obligations are partially paid,
the undersigned  shall remain liable for any balance of such  Obligations.  This
guaranty  shall be revived and  reinstated in the event any payment  received by
Celerity on any  Obligation is required to be repaid or rescinded  under present
or future federal or state law or regulation relating to bankruptcy,  insolvency
or other relief of debtors.

     The undersigned  expressly  represents and  acknowledges  that any loans or
other  financial  accommodations  by Celerity to Artesian are and will be to the
direct interest and advantage of the undersigned.

     No delay or failure on the part of Celerity in the exercise of any right or
remedy shall operate as a waiver thereof,  and no single or partial  exercise by
Celerity of any right or remedy shall preclude other or further exercise thereof
or the exercise of any other right or remedy.

     Any amount  received by  Celerity  from  whatever  source and applied by it
toward  the  payment  of the  Obligations  shall  be  applied  in such  order of
application as Celerity may from time to time elect.

     This  guaranty  shall  bind  and  inure to the  benefit  of  Celerity,  its
successors and assigns,  and likewise shall bind and inure to the benefit of the
undersigned,  their heirs,  executors,  administrators,  successors and assigns.
This guaranty  contains the entire agreement and there is no understanding  that
any other  person  shall  execute this or a similar  guaranty.  Furthermore,  no
course of  dealing  between  the  parties,  no usage of trade,  and no parole or
extrinsic  evidence  shall be used to  supplement  or  modify  any terms of this
guaranty;  nor are there any  conditions to the complete  effectiveness  of this
guaranty.

     The parties  agree that this  guaranty  shall be deemed,  made,  delivered,
performed  and  accepted  by  Celerity  in the State of  Tennessee  and shall be
governed by the laws of the State of Tennessee. Wherever possible each provision
of this  guaranty  shall be  interpreted  in such manner as to be effective  and
valid under  applicable  law,  but if any  provision of this  guaranty  shall be
prohibited by or invalid under such law, such provision  shall be ineffective to
the extent of such prohibition or invalidity, without invalidating the remainder
of such provision or the remaining provisions of this guaranty.

     THE  UNDERSIGNED  (A)  SUBMITS  TO  PERSONAL  JURISDICTION  IN THE STATE OF
TENNESSEE,  THE COURTS  THEREOF AND ANY UNITED  STATES  DISTRICT  COURT  SITTING
THEREIN,  FOR THE  ENFORCEMENT  OF THIS  GUARANTY  AND  (B)  WAIVES  ANY AND ALL
PERSONAL  RIGHTS  UNDER  THE LAW OF ANY  JURISDICTION  TO  OBJECT  ON ANY  BASIS
(INCLUDING, WITHOUT LIMITATION, INCONVENIENCE OF FORUM) TO JURISDICTION OR VENUE
WITHIN THE STATE OF  TENNESSEE  FOR THE PURPOSE OF  LITIGATION  TO ENFORCE  THIS
GUARANTY.  NOTHING  HEREIN  CONTAINED,  HOWEVER,  SHALL  PREVENT  CELERITY  FROM
BRINGING ANY ACTION OR  EXERCISING  ANY RIGHTS  AGAINST ANY SECURITY AND AGAINST
ARTESIAN,  AND  AGAINST  ANY  ASSETS OF  ARTESIAN,  WITHIN  ANY  OTHER  STATE OR
JURISDICTION.

     The undersigned  certifies that all information  concerning the undersigned
is true, correct and complete.

     The  undersigned  agrees,  in the event that this  Guaranty  is enforced or
collected  by law or through an attorney at law, to pay all costs of  collection
actually incurred by Celerity, including, without limitation, attorneys' fees.

     IN WITNESS WHEREOF,  the undersigned has executed this guaranty under seal,
as of the ___ day of August 2001.


                                                     "GUARANTOR"


                                                     --------------------------
                                                     Edward Kidston