GPC

[akubatova]

Hello ,
I'm setting up GPC system from an older equipment.
I have two problems. I need to fix Waters 501 pump, but I don't have manual on parts replacement. Can anybody help me?
The second question is regarding the use of THF. Do I need to flush the pump regularly after its use or can I keep it all the time in.
Thank you

[Uwe Neue]

For GPC, you are using stabilized THF. Unless you plan to let the instrument sit idle for a lengthy period of time, you can leave the THF in the instrument (i.e. not need to flush it out at the end of the day).