Dear K.Jirapat,
We would like to confirm to you as following;
For addition pump (Acid condition)
pH of fluid is 3
It is the mixture fluid from many source of waste water.
We will note this condition to process team for consideration.
Then, please quote the price for submersible pump as below specification;
Pump no. : P-911
Flow : 2 m3/hr
Head : 20 m.
Liquid : Waste Water
pH : 3 Acid (4 is possible, we accepted)
Note.
We think the pump model. CN651-P65 as your quote in the attachment-P429_Specification for Submersible Pump No 003 (5) for P-952 possible to use as above specification.