You are welcome Calvi Yes for anyone who will always continue glow flying regardless of what other avenues of the hobby/sport we may also pursue the Hayes tanks are definitely worth saving while other brands may not as far as I am concerned.

I have an ample supply in all the sizes that is likely keep me going for all my remaining flying years.

There is one down side that many do not understand and that is to completely drain the tank one must use the main pickup line. You cannot completely drain the tank if you drill and use that third line nipple (the middle one between the other two that is best left undrilled. This is simply because there is no third line clunk and none can be used. Third line clunks have there own disadvantage and that is there is a reduction in tank capacity and this is even more important on the smaller tank capacities.

The Hayes tanks are best when used with two line systems. If I have a tank that someone has drill out the middle nipple I just plug it with screw and a bit of sealer.

John