Confident fill the tank with a narrow neck to the desired level (for example, an automotive canister), if you equip the funnel with a special gauge. For its production will need a wire needle with a diameter of 1 mm, cork or foam float and a tin strip into the guide hole.
Recommend to read
AND FROM DRAFTS
What only options are fixing the door in position by homebrew not tested! Here is another, perhaps the most accessible of the simplest. You will need only a small piece of sponge rubber...
AND SKINLESS…
will be able to clean up the edge viersprong wooden or plastic blanks, if you use this device. A Stripping KNIFE is easy to make from an old saw blade, selecting, using a bench grinder...
