just a tip
i have found this tube sold buy the meter in good model shops acyric tube is ok for a botting tube .
also they are a great sourse for brass tubing to build a sparge arm as well.
the holes in the sparge arm can be done very easy as well . all you need is a tool called a pin vice they are like a little jewellers screw driver but they will hold several very small drill bits under a milimeter to make the holes.
well got a bit off topic but usefull i hope.
richard
