VPI cleaner clear tubes cracking

What fluid are you using? I've never had any problems w/ my 3 year old machine. I use Disc Doctor and RR Labs fluids

I think that the tubes crack because of exposure to alcohol.I have just been looking at mine last night with a view to replacing due to wear of the velvet pads and I noticed some light lines of cracks on the parts of the plastic tube.

I have been using about 10% alcohol with the VPI fluid. Maybe I should stop adding the alcohol...

You might also want to check the "ring stop" on the vacuum post and make sure the wand is going down flat on the LP and with just sufficient force to allow the vacuum to suction. If set too low, or if the ring is skewed "ass end down", you might be putting too much pressure on the wand as the vacuum pulls it down.

I've gone through 6 tubes with mine so far and haven't seen a hint of cracking. I do not use alcohol based products, though.