Question ID: 1000-8172-1-2-3-4
Recipe Description
OK, now what will we need:
First, take the sand paper.
If the cap has some imprint on it, sand it down so the cap is flat.
In the middle of the cap, use the sand paper and make it rough. It should not be smooth.
Now we will drill three holes so that an M3 screw can be put in them.
One will be in middle and the other on opposite sides, place them near the inner cap circle.
Now, rip off anything overlapping off the holes.
Now, put M3 screws in the outter holes with head down.
From top, put pads on them and then nuts.
Tighten until screws get partially inside the plastic (this will deform the plastic a bit).
This will ensure they will be air-tight.
Look at photos.
Now, cut a piece of metal. The shape of it is up to you, but rectangle is easiest.
Its length should be about the same as cap's diameter.
Make it wide enough so it won't break when you make 3 holes into it.
Use rasp to make edges and corners round (for safety).
Now drill into it 2 holes of M3 size in the same distance as the screws are placed in cap.
Between them, make another hole. Its size will vary, because you need to use screw big enough to hold the spring.
Now, put a short screw in the middle hole.
Put pad and nut into the spring and screw it together with spring holder.
You can see it on photos.
Now just put the spring holder on screws and put nuts on them.
Now, cut a rectangle out of rubber. It should be some rubber that doesn't bend very easily.
I used pipe sealing rubber.
Its width should be bigger than diameter of hole in cap.
Make it longer than its width.
Put some oil on the top of cap around the hole.
It should be some light oil with no smell, non-toxic. I would like to suggest you to use silicone oil.
(It is often sold as spray, very good for this use)
Put also a bit on the bottom of rubber.
Put the rubber between the hole and spring. It should cover the hole and spring should be applying some force onto it.
Use the nuts on screws to adjust the pressing force of spring.
It might be good to use some anti-corrosive or at least any protective paint on heads of the screws.
The rest which will not be inside the bottle doesn't need any paint, the silicone oil will be enough.Good luck in brewing!
Question & Answer
Question: Choose the best title for the missing blank to correctly complete the recipe.
Making the Base
Placing Screws
Making Spring Holder and Placing Spring
____________
Choices:
(A) Poor Mans "Vacuum" Sealer
(B) Jiggle Syphon
(C) Syphon Tube
(D) Making the "valve"
(D) Making the "valve"