Thread: Electric Vac pump

Anyone ever use an electric vac pump when filtering? If so anything special I need to know on how to do it. Do I need glass media bottles or will plastic work? Used some plastic ones and they cracked under to much vac from hand pump. Any help is greatly appreciated.

I would go with glass media bottles. It also depends on the pump that you will be using as to what you'll need. You may need a regulator as well.

I'm going to be using a 1.5cfm pump.

You will need glass without a doubt, and should look into a regulator so you can control the amount of suction.

I need to stop using needle filters. That pump thing sounds good

Haha at what $3-5 each that adds up for syringe filters. I would just take it to a priest and have him bless it... Could call it the holy oil.

temp is definetly an issue with the plastic media bottles. I'm trying to find a regulator at a reasonable cost. Any suggestions on where to get one?? How many HG of vac do you run with the glass media bottles???

I would think with quality glass it would not matter that much. I would think the regulator would more keep from damaging the filter.

Freek is right... Most PVDF, or Nylon filter can handle high vac pressures. The glass media bottle isn't going to be your limiting factor... The filter, and (most likely) bottle top filter component will be the weak points. Harbor Freight is incredibly cheap, and actually has some good products. I would say about 8-10 PSI for PVDF filters. (the bottle tops are plastic you're using right)?