Originally Posted by
Martinm210
UV tubing and grocery store distilled water works for me. It used to drive me nuts having a UV dye run loop look like crap within just a couple of months, many times the dye would fade within just a few weeks. I haven't had the same problem since going UV tubing and ordinary grocery store distilled water. My reservoir and large clear King Flowmeters are just as crystal clear as they were when I filled it several months ago.
Nix the dyes and go clean water with a few drops of PTnuke. If you want color, go with UV colored tubing. You don't need fancy overpriced distilled or filtered water, your ordinary $1/gallon grocery store distilled water work just as well.