1. Kuwerenga ndizosalongosoka ndi kusintha kwambiri,
2. Rkuwerenga si kolondolandi kulakwa kwakukulu .
3. Akupanga flowmeter masensa ndi zabwino, koma otaya mlingo ndi otsika kapena otaya mlingo
4. Sing'anga yoyezera ndi yoyera kapena yolimba yoyimitsidwa yotsika kwambiri
5. Kulumikizana pakati pa sensa ndi payipi sikwabwino, ndipo pali mipata kapena thovu pamtunda wolumikizana.
Nthawi yotumiza: Sep-26-2022