Here is a quick tip on how to make a filter in just a few minutes. Maybe as fast as one minute. This is useful for monks who want to put filters on their water taps. It is my own invention as far as I know, but I am sure other monks somewhere else also do the same. The Buddha did mention that if we did not have a filter, we could use the corner of our robes (that we are wearing). This was how I got the idea by using an old robe. Old robes are abundant and easy to find in almost any monastery. Be sure to clean the robe before officially using the filter. This one was washed twice, but still had a stain on it. If you are really lazy (like me), you can cut out the filter and then just wash that small piece of cloth in a very short time.
If you are a lay person, it might be interesting to see the commercial strength bowl washing sink where we wash our bowls. 3:15 minutes in length.