How to connect the sound and the computer together
The master to teach you a move of expansion of cement plus sesame or silk lint 1 to 1 plus a small amount of water to do the same thing to do a little hand to fill the hole to fill the hole with the head of the tube is not a good move to stay a little plug One hundred percent do not leak do not remember too wet knocking even real
Buy two bags of plugging the spirit of the wall around the empty walls are brush all over the cable through the foolishness of the cellar bogey whisper bleach after the gap with the plugging the spirit of the plug is also the most simple and most practical and most economical
The use of steel pipe as a wall, to solve the waterproof problem.