Follow our step by step guide to create your own vacuum pump oil filter out of toilet paper and a Brita water filter. You may also be interested in our slide show video located here.
This is the method that we use to remove particulates that could cause the oil to degrade. This allows us to re-use the oil for many loads before it finally breaks down.
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CUT AWAY SOME TOILET PAPER
Use the knife to cut off about 1 centimeter to a 1/2 an inch of toilet paper. The fresher the roll, the less deep you need to cut.
ROLL SOME TOILET PAPER
Roll up about a quarter inch think layer of toilet paper.
Continue rolling more layers of toilet paper into the roll until the diameter is about a quarter inch bigger than the filter hole in the pitcher.
ADD THE COFFEE FILTER
Wrap a coffee filter around one end of the roll.
INSERT THE FILTER ROLL
Push the toilet paper filter roll into the hole in the water filter pitcher. The coffee filter end should enter the hole first.
Push the filter into the hole and until the roll is almost all the way in. Make sure the fit is snug so that oil cannot bypass the filter.
CHECK THE OTHER SIDE
Verify from the bottom of the filter hole that the filter is snug on that end as well. An open bottom like the one shown will make it easy to push a dirty filter back out.
ADD YOUR DIRTY OIL
Pour the dirty vacuum pump oil into the pitcher. It will take a while for the toilet paper to absorb the oil.
WAIT SOME MORE
It will take anywhere from 8 to 48 hours to filter, depending on your pitcher and toilet paper. The filter shown does the job in about 8 hours.
ADMIRE YOUR CLEAR OIL
The toilet paper will clean up the oil for many loads. We've filtered many loads already without having to change the toilet paper. You will lose roughly 13 oz of oil to new toilet paper when you replace the roll.
See our slide show and recommended filter here