After several years of service, iso will form a buildup within the hose. We recommend doing a thorough strip and rinse of these hoses to assure full flow performance. Order our SprayWorks Power Flush System to restore those aging iso hoses or when winterizing the system. You’ll be amazed at the amount of old cured materials that will come out.
When sanding side seals and chambers we find its best to use 1000 grit sand paper and apply a liberal amount of WD-40 or spray lubricant to aid in the ease of sanding and polish the parts to a restored finish.