Dear Sir,
I have many peizometers plugged (in Earth fill Dams and observation 
wells) and now need to be cleaned. So we are planning to purchase 
an Instruments that can be used for its flushing and cleaning so that 
it can be used again for monitoring. If your company can provide such 
instruments we are ready to import it from you . 
So Kindly provide us with the detail information of
that instruments, and its total expected costs including its shipping to
Yemen. 
We hop to receive your feedback as soon as possible