Be careful using grubscrew/jubilee type clamps on silicone tubing!, they can slice straight through it!, you should realy use 'zip ties' or nylon clamps...
Fuel line clamps are better than grubscrew type ones as well, they have a small bolt and nut instead of the grubscrew, they don't oval/deform as much and give a better seal, hence why they're used on fuel lines
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