Author: Zanele
Date posted: 2018-02-14
Bid Number: ERW201802/034

Bidders are hereby invited for the:


Auto samplers for Waterval






 4 x Auto samplers for composite samples

1.     100% local manufactured.

2.    Operational Temperature must be between  -2 to 45 degrees Celsius

3.    Easy to operate and robust construction for harsh environment. Sampler must be mounted on pole or wall

4.    Internal and removable sample chamber (easy to clean)

5.    Automatic back flush clears pick-up strainer and hose

6.    Lockable enclosure and valve outlet.

7.    5000ml PVC bottle for composite sample collection

8.    Power must be 220VAC to charge battery

9.    220VAC Lightning protection

10.  12VDC Battery for 24hour back –up (hidden and secured to prevent theft)

11.  Power consumption 12 VA

12.  Pump tubing life 10 000 pump counts

13.  Intake suction pipe 5m x 8mm neoprene

14.  Peristaltic Pump type

15.  Maximum lift 8 meters

16.  Flow rate  up to 800ml/min at 1 meter head

17.  Variable sample volume size and timing intervals

18.  24 months warranty on units

19.  Calibration certificate when it is installed

20.  Provide for calibration of Auto samplers after 12 months

21.  Installation on-site

22.  Training for Process controllers


Written guarantee for a minimum of 2 years on equipment



Quotation requirements:

Work offered that DO NOT comply with the specifications will not be evaluated. The successful bidder must register on the ERWAT vendors list. Forms to be downloaded from the ERWAT website. Quotation evaluation shall be performed on 80:20 principle (pricing and functionality 80% and BBBEE 20%)


Functionality criteria:


Bidder must obtain a minimum score of 70% of the functionality criteria, all bids lower than 70% will be disqualified and not further evaluated.


Functionality score

Score Obtained


·        Offered quotation as per specifications = 20


Brochures, (Technical data sheet), for equipment offered to be attached to quotation complete with operating capabilities, durability and origin. Failure to supply above will result to zero score obtained.



20 points


Company experience in supplying sampling  equipment – proof of continuous support; Portfolio of evidence should be provided with completion certificates

- > 5 projects       = 40

- 4 projects          = 30

- 3 projects          = 20

- Less than 3        =10

- Not submitted   =0

 40 points


Expertise and qualifications of Technicians to install, maintain and repair samplers during warranty period

-         1 or >1 certificates provided to proof skills = 20

-         No proof attached                                              = 0

20 points



-         2 Years = 20

-        1 Year = 10

-      <1 Year = 0

20 points


Total points

100 points



General Notes and Requirements

1.         Please note that the Contractor will be responsible for his own safety and transport arrangements.

2.         Note that an official order number will only be issued to service providers on the ERWAT procurement vendor list.  Service providers who wish to apply to be placed on the mentioned list can offload the application document from the ERWAT website on



Bid closing date: 2018-02-21
Compulsory site meeting: N/A

Contact Person:

Stefanus Weyers
Contact number: 084 951 0230
E-mail address:
Bid validity period: 07 Days
Physical address
where bid documents
can be collected:
ERWAT Head Office,
Hartebeestfontein Office Park,
R25, Norkem Park.
Day when Quotation is to be submitted to ERWAT Offices: Wednesday
CIBD Required? N/A



Work offered that DO NOT comply with the specifications will not be evaluated. The successful bidder must register on National Treasury’s Centralised Supplier Database.

Website Tenders evaluation shall be performed on 80:20 principles (Pricing and functionality 80% and BBBEE 20%).


  • Valid Certified copy or original BBBEE Compliance Certificate;
  • Valid Tax Clearance Pin issued by SARS on e-filing;
  • Copy of Latest Municipal Account (not older than three months from date of closing);
  • Declaration of Interest – MBD 4.2

NB: Bidders will not be allowed on any of the ERWAT sites without a work permit and the correct PPE gear.


All bids must be submitted in a sealed envelope, clearly marked with the relevant bid number and description that must be deposited in the relevant tender box on the said closing date on or before 12:00 pm

No late bids will be accepted or considered.

Bidders are required to ensure that their bid is deposited in the correct bid box that is marked Monday, Tuesday, Wednesday, Thursday and Friday. 

The closing date will be the indication for which tender box day is relevant.