GEA Videos no-reply@gea.com https://video.gea.com en-us Visualplatform http://blogs.law.harvard.edu/tech/rss GEA Videos episodic no https://video.gea.com/files/rv1.5/sitelogo.gif https://video.gea.com http://video.gea.com/soiling-class-1 <p><p><strong>Light residues, effortless cleaning – spotlight on Soiling Class 1.</strong></p><p>This animation demonstrates how light milk residues are effectively removed using a static spray ball.</p><p><strong>Ideal for low-soiling applications:</strong></p><p>Cleaning is reliable and resource-efficient – with no moving parts required.</p><p><strong>The result:</strong> Minimal technology, maximum benefit – perfect for hygiene-critical processes with low cleaning demands.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-1"><img src="http://video.gea.com/64968580/112710710/644bb773a9b94767c290c608391df070/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/112710710 Tue, 13 May 2025 08:10:43 GMT Soiling Class 1 Light residues, effortless cleaning – spotlight on Soiling Class 1.This animation demonstrates how light milk residues are effectively removed using a static spray ball.Ideal for low-soiling applications:Cleaning is reliable and resource-efficient – with no moving parts required.The result: Minimal technology, maximum benefit – perfect for hygiene-critical processes with low cleaning demands.Explore more » Light residues, effortless cleaning – spotlight on Soiling Class 1.This animation demonstrates how light milk residues are effectively removed using a static spray ball.Ideal for low-soiling applications:Cleaning is reliable and resource-efficient... GEA Videos 00:43 <p><p><strong>Light residues, effortless cleaning – spotlight on Soiling Class 1.</strong></p><p>This animation demonstrates how light milk residues are effectively removed using a static spray ball.</p><p><strong>Ideal for low-soiling applications:</strong></p><p>Cleaning is reliable and resource-efficient – with no moving parts required.</p><p><strong>The result:</strong> Minimal technology, maximum benefit – perfect for hygiene-critical processes with low cleaning demands.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-1"><img src="http://video.gea.com/64968580/112710710/644bb773a9b94767c290c608391df070/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents-soiling-classes soiling-class soilingclasses tank cleaning verschmutzungsklassen http://video.gea.com/soiling-class-4 <p><p><strong>High-impact cleaning for tough, sticky residues – Soiling Class 4 in action.</strong><br>This animation shows how an orbital cleaner powerfully removes melted and cooled chocolate residues from a process tank.</p><p><strong>Ideal for applications with stubborn, sticky soils:</strong><br>The orbital movement generates high-impact, focused jets that break down and wash away even the most resilient residues.</p><p><strong>The result:</strong> Maximum cleaning performance for the toughest applications – ensuring reliable hygiene and efficient use of resources.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-4"><img src="http://video.gea.com/64968566/112710726/078d043c0518560bc9a0611dcbeffe1f/standard/download-12-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/112710726 Tue, 13 May 2025 08:10:31 GMT Soiling Class 4 High-impact cleaning for tough, sticky residues – Soiling Class 4 in action.This animation shows how an orbital cleaner powerfully removes melted and cooled chocolate residues from a process tank.Ideal for applications with stubborn, sticky soils:The orbital movement generates high-impact, focused jets that break down and wash away even the most resilient residues.The result: Maximum cleaning performance for the toughest applications – ensuring reliable hygiene and efficient use of resources.Explore more » High-impact cleaning for tough, sticky residues – Soiling Class 4 in action.This animation shows how an orbital cleaner powerfully removes melted and cooled chocolate residues from a process tank.Ideal for applications with stubborn, sticky... GEA Videos 00:59 <p><p><strong>High-impact cleaning for tough, sticky residues – Soiling Class 4 in action.</strong><br>This animation shows how an orbital cleaner powerfully removes melted and cooled chocolate residues from a process tank.</p><p><strong>Ideal for applications with stubborn, sticky soils:</strong><br>The orbital movement generates high-impact, focused jets that break down and wash away even the most resilient residues.</p><p><strong>The result:</strong> Maximum cleaning performance for the toughest applications – ensuring reliable hygiene and efficient use of resources.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-4"><img src="http://video.gea.com/64968566/112710726/078d043c0518560bc9a0611dcbeffe1f/standard/download-12-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents-soiling-classes soiling-class soilingclasses tank cleaning verschmutzungsklassen http://video.gea.com/soiling-class-3 <p><p><strong>Medium-impact cleaning for wet, sticky residues – Soiling Class 3 in action.</strong><br>This animation shows how a slow rotating cleaner effectively removes heated and strained tomato residues from a process tank.</p><p><strong>Ideal for applications with wet, sticky products:</strong><br>The slow, powerful rotation generates focused jets that deliver thorough cleaning with increased mechanical impact.</p><p><strong>The result:</strong> Reliable removal of stubborn residues while maintaining efficient resource use and consistent hygiene standards.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-3"><img src="http://video.gea.com/64968576/112710721/9ab03195c9c189053859598f9654541b/standard/download-9-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/112710721 Tue, 13 May 2025 08:05:31 GMT Soiling Class 3 Medium-impact cleaning for wet, sticky residues – Soiling Class 3 in action.This animation shows how a slow rotating cleaner effectively removes heated and strained tomato residues from a process tank.Ideal for applications with wet, sticky products:The slow, powerful rotation generates focused jets that deliver thorough cleaning with increased mechanical impact.The result: Reliable removal of stubborn residues while maintaining efficient resource use and consistent hygiene standards.Explore more » Medium-impact cleaning for wet, sticky residues – Soiling Class 3 in action.This animation shows how a slow rotating cleaner effectively removes heated and strained tomato residues from a process tank.Ideal for applications with wet, sticky... GEA Videos 00:44 <p><p><strong>Medium-impact cleaning for wet, sticky residues – Soiling Class 3 in action.</strong><br>This animation shows how a slow rotating cleaner effectively removes heated and strained tomato residues from a process tank.</p><p><strong>Ideal for applications with wet, sticky products:</strong><br>The slow, powerful rotation generates focused jets that deliver thorough cleaning with increased mechanical impact.</p><p><strong>The result:</strong> Reliable removal of stubborn residues while maintaining efficient resource use and consistent hygiene standards.</p><p></p><p><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses/"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-class-3"><img src="http://video.gea.com/64968576/112710721/9ab03195c9c189053859598f9654541b/standard/download-9-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents-soiling-classes soiling-class soilingclasses tank cleaning verschmutzungsklassem http://video.gea.com/soiling-classes <p><p><strong>This animation offers a clear and engaging comparison of the four Soiling Classes – visually compelling, practical, and easy to understand.</strong></p><p>Each class is illustrated by a dedicated tank and a typical cleaning scenario – from light milk residues removed with static spray balls to stubborn chocolate films requiring powerful orbital cleaners.</p><p><strong>The result: a visually impactful guide that simplifies the selection of the right cleaning technology – enabling maximum efficiency, reliable processes, and responsible use of resources.</strong><br><br><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-classes"><img src="http://video.gea.com/64968560/112710709/fbe45e7598fc0ff154bf579323bf1c6d/standard/download-23-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/112710709 Tue, 13 May 2025 07:50:54 GMT Soiling Classes This animation offers a clear and engaging comparison of the four Soiling Classes – visually compelling, practical, and easy to understand.Each class is illustrated by a dedicated tank and a typical cleaning scenario – from light milk residues removed with static spray balls to stubborn chocolate films requiring powerful orbital cleaners.The result: a visually impactful guide that simplifies the selection of the right cleaning technology – enabling maximum efficiency, reliable processes, and responsible use of resources.Explore more » This animation offers a clear and engaging comparison of the four Soiling Classes – visually compelling, practical, and easy to understand.Each class is illustrated by a dedicated tank and a typical cleaning scenario – from light milk residues... GEA Videos 02:40 <p><p><strong>This animation offers a clear and engaging comparison of the four Soiling Classes – visually compelling, practical, and easy to understand.</strong></p><p>Each class is illustrated by a dedicated tank and a typical cleaning scenario – from light milk residues removed with static spray balls to stubborn chocolate films requiring powerful orbital cleaners.</p><p><strong>The result: a visually impactful guide that simplifies the selection of the right cleaning technology – enabling maximum efficiency, reliable processes, and responsible use of resources.</strong><br><br><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/soilingclasses"><strong>Explore more »</strong></a></p></p><p><a href="http://video.gea.com/soiling-classes"><img src="http://video.gea.com/64968560/112710709/fbe45e7598fc0ff154bf579323bf1c6d/standard/download-23-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents-soiling-classes soilingclasses soiling-classes-1-4 tank cleaning verschmutzungsklassen http://video.gea.com/gea-direct-sprayer-ds-25-1 <p><p>Functional animation of a GEA Direct Sprayer DS 25, which can be installed in vessel walls or -bottoms to specifically clean spray shadow areas.</p><p></p><h2><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/campaigns/cleaning-direct-sprayer-ds-25"><strong>Explore more »</strong></a></h2></p><p><a href="http://video.gea.com/gea-direct-sprayer-ds-25-1"><img src="http://video.gea.com/64968561/101417898/56a56fb969092a003d789054ec530f2f/standard/download-35-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/101417898 Mon, 17 Mar 2025 15:09:38 GMT GEA Direct Sprayer DS 25 Functional animation of a GEA Direct Sprayer DS 25, which can be installed in vessel walls or -bottoms to specifically clean spray shadow areas.Explore more » Functional animation of a GEA Direct Sprayer DS 25, which can be installed in vessel walls or -bottoms to specifically clean spray shadow areas.Explore more » GEA Videos 01:16 <p><p>Functional animation of a GEA Direct Sprayer DS 25, which can be installed in vessel walls or -bottoms to specifically clean spray shadow areas.</p><p></p><h2><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/campaigns/cleaning-direct-sprayer-ds-25"><strong>Explore more »</strong></a></h2></p><p><a href="http://video.gea.com/gea-direct-sprayer-ds-25-1"><img src="http://video.gea.com/64968561/101417898/56a56fb969092a003d789054ec530f2f/standard/download-35-thumbnail.jpg" width="75" height=""/></a></p> Agiator cleaning Cleaner cleaning technology direct spray cleaner Direkt Sprühreiniger flowcomponents flow components Reiniger reinigungstechnik tank cleaning tankreinigung http://video.gea.com/gea-direct-sprayer-ds-25 <p><p>This video showcases the preventive maintenance of the GEA Direct Sprayer DS 25, highlighting essential steps to ensure optimal performance and extended longevity.</p><h2><br><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/campaigns/cleaning-direct-sprayer-ds-25"><strong>Explore more »</strong></a></h2></p><p><a href="http://video.gea.com/gea-direct-sprayer-ds-25"><img src="http://video.gea.com/64968559/110769215/e43ecf5c6fbd8fe2270d917b6ecccca9/standard/download-35-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/110769215 Mon, 17 Mar 2025 15:09:21 GMT GEA Direct Sprayer DS 25 – Maintenance This video showcases the preventive maintenance of the GEA Direct Sprayer DS 25, highlighting essential steps to ensure optimal performance and extended longevity.Explore more » This video showcases the preventive maintenance of the GEA Direct Sprayer DS 25, highlighting essential steps to ensure optimal performance and extended longevity.Explore more » GEA Videos 14:17 <p><p>This video showcases the preventive maintenance of the GEA Direct Sprayer DS 25, highlighting essential steps to ensure optimal performance and extended longevity.</p><h2><br><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/campaigns/cleaning-direct-sprayer-ds-25"><strong>Explore more »</strong></a></h2></p><p><a href="http://video.gea.com/gea-direct-sprayer-ds-25"><img src="http://video.gea.com/64968559/110769215/e43ecf5c6fbd8fe2270d917b6ecccca9/standard/download-35-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleanermaintenance cleaning flowcomponents flow components maintanence retractors serviceable sustainability tank cleaning http://video.gea.com/gea-turbodisc-maintenance <p><p>This video showcases the preventive maintenance of the GEA Turbodisc free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity.</p></p><p><a href="http://video.gea.com/gea-turbodisc-maintenance"><img src="http://video.gea.com/64968561/109806417/3318686063ac40dde017ce4c02f5e8bb/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/109806417 Tue, 11 Feb 2025 18:39:38 GMT GEA Turbodisc – Maintenance This video showcases the preventive maintenance of the GEA Turbodisc free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity. This video showcases the preventive maintenance of the GEA Turbodisc free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity. GEA Videos 02:43 <p><p>This video showcases the preventive maintenance of the GEA Turbodisc free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity.</p></p><p><a href="http://video.gea.com/gea-turbodisc-maintenance"><img src="http://video.gea.com/64968561/109806417/3318686063ac40dde017ce4c02f5e8bb/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> Cleaner cleanermaintenance Cleaners Cleaning flowcomponents maintenace service serviceable serviceable-cleaner sustainability tank cleaning http://video.gea.com/gea-turbo-ssb-maintenance <p><p>This video showcases the preventive maintenance of the GEA Turbo SSB free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity.</p></p><p><a href="http://video.gea.com/gea-turbo-ssb-maintenance"><img src="http://video.gea.com/64968579/109806392/7fbbb96f3303708774167ded816e0785/standard/download-16-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/109806392 Tue, 11 Feb 2025 18:33:25 GMT GEA Turbo SSB – Maintenance This video showcases the preventive maintenance of the GEA Turbo SSB free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity. This video showcases the preventive maintenance of the GEA Turbo SSB free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity. GEA Videos 02:01 <p><p>This video showcases the preventive maintenance of the GEA Turbo SSB free-rotating tank cleaner, highlighting essential steps to ensure optimal performance and extended longevity.</p></p><p><a href="http://video.gea.com/gea-turbo-ssb-maintenance"><img src="http://video.gea.com/64968579/109806392/7fbbb96f3303708774167ded816e0785/standard/download-16-thumbnail.jpg" width="75" height=""/></a></p> cleanermaintenance cleaners cleaning flowcomponents maintenance service serviceable serviceable-cleaner serviceable-cleaners sustainability tank cleaning http://video.gea.com/turbodisc-key-maintenance <p><p>The video showcases the free rotating tank cleaner <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/products/cleaners-sterilizers/tank-cleaning/free-rotating-cleaners/chemidisc-turbodisc/"><strong>GEA Turbodisc</strong></a>. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use.</p> </p><p><a href="http://video.gea.com/turbodisc-key-maintenance"><img src="http://video.gea.com/64968567/106910955/15d17723d72189340ca637aad45aadfc/standard/download-18-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106910955 Mon, 25 Nov 2024 16:57:06 GMT Turbodisc – Key maintenance components The video showcases the free rotating tank cleaner GEA Turbodisc. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use. The video showcases the free rotating tank cleaner GEA Turbodisc. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use. GEA Videos 00:26 <p><p>The video showcases the free rotating tank cleaner <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/products/cleaners-sterilizers/tank-cleaning/free-rotating-cleaners/chemidisc-turbodisc/"><strong>GEA Turbodisc</strong></a>. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use.</p> </p><p><a href="http://video.gea.com/turbodisc-key-maintenance"><img src="http://video.gea.com/64968567/106910955/15d17723d72189340ca637aad45aadfc/standard/download-18-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents maintenance service serviceable serviceable-cleaner serviceable-cleaners sustainability tank cleaning http://video.gea.com/turbo-ssb-key-maintenance <p><p>The video showcases the slow rotating tank cleaner <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/products/cleaners-sterilizers/tank-cleaning/slow-rotating-cleaners/slow-rotating-cleaner-turbo-ssb/"><strong>GEA Turbo SSB</strong></a>. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use.</p> </p><p><a href="http://video.gea.com/turbo-ssb-key-maintenance"><img src="http://video.gea.com/64968576/106911056/cb6e5b5b97951a11f22452fb548d9016/standard/download-17-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106911056 Mon, 25 Nov 2024 16:56:28 GMT Turbo SSB – Key maintenance components The video showcases the slow rotating tank cleaner GEA Turbo SSB. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use. The video showcases the slow rotating tank cleaner GEA Turbo SSB. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use. GEA Videos 00:30 <p><p>The video showcases the slow rotating tank cleaner <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.gea.com/en/products/cleaners-sterilizers/tank-cleaning/slow-rotating-cleaners/slow-rotating-cleaner-turbo-ssb/"><strong>GEA Turbo SSB</strong></a>. It rotates 360 degrees, then opens up to display all individual parts, highlighting key maintenance components and ease of use.</p> </p><p><a href="http://video.gea.com/turbo-ssb-key-maintenance"><img src="http://video.gea.com/64968576/106911056/cb6e5b5b97951a11f22452fb548d9016/standard/download-17-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning flowcomponents maintenance service serviceable serviceable-cleaner serviceable-cleaners sustainability tank cleaning http://video.gea.com/soiling-class-i-the-ideal-solution <p><p></p></p><p><a href="http://video.gea.com/soiling-class-i-the-ideal-solution"><img src="http://video.gea.com/64968559/106774055/07b8e96ec13a52413cabedafd67a2047/standard/download-15-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106774055 Fri, 22 Nov 2024 22:03:21 GMT Soiling Class I – The ideal solution for non- adhesive water-soluble products GEA Videos 00:38 <p><p></p></p><p><a href="http://video.gea.com/soiling-class-i-the-ideal-solution"><img src="http://video.gea.com/64968559/106774055/07b8e96ec13a52413cabedafd67a2047/standard/download-15-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning soilingclasses soiling classes soilingsolutions sustainability tank cleaning http://video.gea.com/soiling-class-ii-the-ideal <p><p></p></p><p><a href="http://video.gea.com/soiling-class-ii-the-ideal"><img src="http://video.gea.com/64968561/106774017/a72fae828a1ae9f3c99fd6e0f8064552/standard/download-16-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106774017 Fri, 22 Nov 2024 21:58:11 GMT Soiling Class II – The ideal solution for adhesive water-soluble products GEA Videos 00:36 <p><p></p></p><p><a href="http://video.gea.com/soiling-class-ii-the-ideal"><img src="http://video.gea.com/64968561/106774017/a72fae828a1ae9f3c99fd6e0f8064552/standard/download-16-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning soilingclasses soiling classes soilingsolutions sustainability tank cleaning http://video.gea.com/soiling-class-iii-the-ideal <p><p></p></p><p><a href="http://video.gea.com/soiling-class-iii-the-ideal"><img src="http://video.gea.com/64968567/106773985/863b8a4caba84e0d27ea62b100f7bab9/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106773985 Fri, 22 Nov 2024 21:55:17 GMT Soiling Class III – The ideal solution for wet sticky products GEA Videos 00:37 <p><p></p></p><p><a href="http://video.gea.com/soiling-class-iii-the-ideal"><img src="http://video.gea.com/64968567/106773985/863b8a4caba84e0d27ea62b100f7bab9/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning soilingclasses soiling classes soilingsolutions sustainability tank cleaning http://video.gea.com/soiling-class-iv-the-ideal <p><p></p></p><p><a href="http://video.gea.com/soiling-class-iv-the-ideal"><img src="http://video.gea.com/64968579/106771645/5f57bc928d23a4822547103eb194906e/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> http://video.gea.com/photo/106771645 Fri, 22 Nov 2024 21:47:49 GMT Soiling Class IV – The ideal solution for sticky residues GEA Videos 00:37 <p><p></p></p><p><a href="http://video.gea.com/soiling-class-iv-the-ideal"><img src="http://video.gea.com/64968579/106771645/5f57bc928d23a4822547103eb194906e/standard/download-14-thumbnail.jpg" width="75" height=""/></a></p> cleaner cleaners cleaning soilingclasses soiling classes soilingsolutions soling-classes sustainability tank cleaning