HomeMy WebLinkAboutgr00090_000006_pg772..
June 26th $ 1961 meeting continued -
3. The Turbomatic Co. has nest built a unit of this nature. Conse-
quently they have no service record of the performance of this
unit which they propose.
00007?
4. In water treatment and sanitary sewer plant engineering* it is
not uncommon to investigate the possibility of the use of egip-
ment other than that which is originally proposeds However* in
a circumstance of this nature there is generally a pilot plant
history to be relied upon in considering the performance of a
new unit. In the case of the Turbomatic proposal there is no
pilot plant data available, as no pilot plant has ever been con-
structed or tested to our knowledge.
5. There have been instances where untested equipment has been
installed in a sewage treatment plant. In one case the munici-
pality was allowed to operate the equipment for a period of three
years before payment was required. This permitted the accumula-
tion of a sufficient operational history to determine the satis-
factory operation of the unit.
Another in.s t anb e was an arrangement whereby a guarantee was pro •
vided the municipality f"or a type of equipment which was less
expensive than that originally proposed* This equipment was
not considered to be equal to the originally proposed item and
after a period of attempted operation for two years, it was dis-
covered that the bid item did not perform the job intended.
After the two year period the equipment was removed. In this
instance the municipality never did obtain the originally pro- -
posed equipment and the operation of the then substituted equip-
ment was more costly than the municipality would have paid for
the operation of the originally specified equipment.
The equipment on the second bid by the Layne-Minnesota Co. has
had a successful operational history over a period in excess
of 10 years. One feature of the unit that is more favorable
is that it can be back washed with raw water while the unit is in
service.
The sum of ,2k , 250 difference in the low bid of the Turbomatic Co.
and the second bid of the Layne - Minnesota Co. is extremely attractive
however, we cannot concientiously advise the village to accept the lo.
bid in view of the fact that there is no similar unit in operation no_:
any pilot plant data. Recently, C-is bid differential has occurred
in four previous instances. In each case a different engineering fir: ~,
firm was involved. The recommendation of the engineering firm
in each case was that the Turbomatic bid should not be considered
for numerous . stated reasons. Therefore., ye believe that our
statement cannot be altered favoring the low bid.