1. Get a gas mask with filter
2. Open the filter carefully. The filter has a chamber with a paper
filter, then another one with charcoal. Take everything out.
3. My filter has a tiny hole at the bottom, I used some pvc cement
to place a coin right in its place.
4. Go to the hardware store and buy a hose coupler and a small
hose. The hose and the couple has to fit exactly.
5. The hose coupler has a tiny hole at the bottom and sometimes is
too big, big enough to let some grass go into the water container. I used a
Pilot ballpoint pen (those with the metal cone). With a hammer,
hit the little metal cone into the smallest hole in the hose coupler.
the metal thing will get stuck and you will have a hole even smaller.
6. With a drill make a hole on the top of the filter, trying to match the size of the
hose. No need to be exact, but try no to open it more than you have to.
7. Now, close your filter and seal it with electric tape. I do not recommend to seal
it permanently because maybe someday you want to clean the filter
throughoutly. Let the glue dry for while.



