1.There is some gas and little carton dust in the pure water the first release,that is  normal .You just need to open and close the water faucet several times.Generaly speaking,when the first two bucket of water in the storage barrel is released,the gas and carton dust will be drained.

2.The quality of pure quality can be checked by TDS machine and calculate the desalination rate .

3.Please read  product instructions carefully before using machine to make sure the best performance.

4.Do not put water above 40 degrees or below 5 degrees to the inlet of machine.

5.Do not put main machine and pipelines to high tempertature places.

6.Do not blend any pinelines.

7.To extend the life of machine,you can add extra appropriate filter before the first filter for underground water source or some areas in bad water quality .

8.Please close the inlet switch first,when all dirty water exhausted,then let the inlet switch to go on use,because the inlet water is very dirty which will make negative effect on the life of filter.