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Message STERIDRAIN™ A HYGIENICDRAINAGESYSTEM OPERATION &MAINTENANCE MANUALEric’sons Inc.296 Industrial Way N.Dallas, GA 30132(770) 505-6575www.duratrench.com

TABLE OF CONTENTS1 Contact Information .........................................................................................22 System Overview ..............................................................................................23 Operating Procedures ......................................................................................24 Inspection Guidelines ......................................................................................2 i. Stainless Steel or Fiberglass Frames .........................................................2 ii. Stainless Steel, Fiberglass, or Polymer Concrete Body ..........................2 iii. Sanitary Grates ...........................................................................................2 iv. Outlet Connections .....................................................................................3 v. Gasketed or Sealed Joints ..........................................................................3 vi. Floor Drains, Hub Drains, Cleanouts, and Floor Sinks ...........................35 Maintenance ......................................................................................................3 i. Routine Cleaning ...........................................................................................3 ii. Chemical Resistance & Disinfection ...........................................................3 iii. Seal Maintenance .........................................................................................36 Repairs ..............................................................................................................3STERIDRAIN A HYGIENIC DRAINAGE SYSTEMS OPERATION & MAINTENANCE MANUAL1 of 3 770-505-6575info@eric-sons.comwww.duratrench.com

1. Contact InformationFor questions, maintenance support, or repair services, contact Eric’sons Inc. at (770) 505-6575 or visit www.Duratrench.com2. System Overview SteriDrain™ hygienic drainage products are engineered for food processing, healthcare, laboratory, and other sanitary environments where cleanability, chemical resistance, and durability are critical. The product family includes: • Trench Drains • Floor Drains • Hub Drains • Cleanouts • Floor Sinks These products are constructed primarily from stainless steel, with some congurations utilizing berglass or polymer concrete where appropriate. All systems are sloped for ecient drainage and designed to meet or exceed sanitary and operational standards.3. Operating Procedures SteriDrain systems are passive drainage products with no moving components. Their function relies on proper installation and routine maintenance. End users are responsible for regular inspections and cleaning to maintain hygienic conditions.4. Inspection Guidelines i. Stainless Steel or Fiberglass Frames • Inspect for signs of corrosion, separation, or distortion. • Conrm anchoring remains secure and level with nished ooring.• Check welds and connections for integrity. ii. Stainless Steel, Fiberglass, or Polymer Concrete Body • Remove grates or covers to inspect channels or bodies for cracks, chemical degradation, or residue buildup. • Ensure slopes are intact and joints are sealed properly. • Look for any deterioration that may impact ow or sanitation. iii. Sanitary Grates • Examine for structural wear, clogging, or improper seating. • Check that all fasteners or lockdowns are present and secure. • Remove and clean regularly to prevent microbial growth. 2 of 3 770-505-6575info@eric-sons.comwww.duratrench.comSTERIDRAIN A HYGIENIC DRAINAGE SYSTEMS OPERATION & MAINTENANCE MANUAL

iv. Outlet Connections • Ensure tight connections to plumbing infrastructure. • Flush outlets periodically to verify unobstructed ow. v. Gasketed or Sealed Joints • Inspect any gaskets or sealed transitions for cracking, dry rot, or leaks. • Replace compromised seals immediately using food-safe, chemical-resistant materials. vi. Floor Drains, Hub Drains, Cleanouts, and Floor Sinks • Check strainers, baskets, and domes for clogging or missing components. • Clean any sediment or waste buildup.• For cleanouts, ensure caps are intact and threads are clean. • Inspect waterproong interfaces and ashing where applicable. 5. Maintenance i. Routine Cleaning • Use non-abrasive, stainless-compatible detergents. • Remove all grates or access covers prior to cleaning. • Pressure wash or foam clean trench and oor components. • Clean oor sink baskets and oor drain strainers thoroughly. • Sanitize and reinstall grates or covers once dry.ii. Chemical Resistance & Disinfection • Verify cleaner compatibility with stainless steel, berglass, or polymer concrete materials. • Avoid harsh acids or bases that may compromise surface nishes. • Use NSF-certied or food-grade sanitizing agents. iii. Seal Maintenance • Reseal any failed joints using appropriate chemical-resistant and food-safe materials. • Clean joints thoroughly before resealing. Follow manufacturer application instructions for the best results.6. Repairs In case of structural damage, corrosion, or compromised seal integrity, contact Eric’sons Inc. for assessment and repair. SteriDrain components must maintain sanitary design requirements; unauthorized modications or non-compliant repairs may void warranty and compromise hygienic function. 3 of 3 770-505-6575info@eric-sons.comwww.duratrench.comSTAINLESS STEEL STERIDRAIN™ HYGIENIC DRAINAGE SYSTEMS OPERATION & MAINTENANCE MANUAL

Eric’sons Inc.296 Industrial Way N.Dallas, GA 30132(770) 505-6575SS OPS 8.04.2025TMwww.duratrench.com