After years of putting this off I finally changed my pcv hoses to 3/8 stainless steel lines. Took some doing using just tube bending pliers. Tubing kept kinking so I tried filling them with sand as suggested but they still kinked. 02:00 out of a dead sleep I thought of filling them with water and freezing them…..bends came out great. Used heat shrink to attach to fittings. Only about 20” of tubing needed but it took 8 feet to get it right.
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