Bubble Compression Tek

Bubble compression is a technique that can be applied to all forms of syringe filtration. It’s hard to know how hard we’re pushing on a syringe, and thereby pushing on the filter. If we leave some air in the syringe we can easily monitor how much that air is being compressed. Then we know how much pressure we’re exerting. Use the Boyle’s Law Calculator  to help you determine how much pressure you’re exerting.

Here. I drew u a convenient diagram:

Now lets look what happens when there’s an air bubble:

Example compression ratios

Use a larger starting air bubble for more fine grain control on the pressure.

Use Boyle’s Law Calculator  to calculate your own values. “Initial pressure” can be filled with the current air pressure of your city, which you can find on a weather app. 30inHg is a pretty standard value.

Benefits

This technique will:

• Help prevent you from pushing too hard on your filters, and thus causing blow out.
• Make it easier to push, especially if you’re hand filtering.
• Allow you to know how hard you’re pushing, useful if you’re trying to push through a filter at a high speed without breaking the filter.

I recommend combining this tek with any other syringe filtration tek you try.