Welcome to OCN, fill out your system specs so we know what you're working with. Also, it'd be nice to see what components you have, although that's not really necessary with this situation.
Any tubing has a specific radius of bend which it will allow without kinking. Obviously you've exceeded this radius with some of your bends in your current loop. All you need to do is straighten out some of the curves and you should be good to go. (Yes, I'm Mr. Obvious)
If this doesn't help, you can use regular zip-ties to make your own 'anti kink coils' Just space them about .5-1" apart and tighten them down on the curve until it stays unkinked (not too tight mind you, you don't want to cause a kink form the zip-ties themselves). If you have cheapo pvc tubing zip-ties or anti kink coils are pretty much your only solution. Sometimes even 40*C is enough to make crappy PVC tubing kink on relatively large radius bends.
Any tubing has a specific radius of bend which it will allow without kinking. Obviously you've exceeded this radius with some of your bends in your current loop. All you need to do is straighten out some of the curves and you should be good to go. (Yes, I'm Mr. Obvious)
If this doesn't help, you can use regular zip-ties to make your own 'anti kink coils' Just space them about .5-1" apart and tighten them down on the curve until it stays unkinked (not too tight mind you, you don't want to cause a kink form the zip-ties themselves). If you have cheapo pvc tubing zip-ties or anti kink coils are pretty much your only solution. Sometimes even 40*C is enough to make crappy PVC tubing kink on relatively large radius bends.
