Lc 235 is designed specially for use in systems where The use of acidic descalers are not recommended. Lc 235 may be re-circulated by means of a high volume Pump for the removal of scale. Lc 235 can be used Safely on to copper & brass surfaces besides being very Effective in steel system. Application Lc 235 may be soaked overnight and re-circulated. When scale is present, The tubes should first scraped out to remove as much as possible and then Flushed out with a hose. Dosage Circulate a 10% solution (10 gallons of lc 235 for every 100 gallons of Water.) for a period of four to six hours depending on the scale thickness. Solution may be heated for effectiveness by steaming. The system should Then be drained and inspected. If more scale remains, repeat the process. When the cleaning process is complete, flush with clean water and place it Back in service. For storing / stand by system use lc 253 or lc 252. Handling & precaution This product is alkaline and should be handled with care to prevent personal Injury. Protective clothing, gloves and eye protection should be worn. In case Of skin contact, immediately flush thoroughly with plenty of clean water. In Case of eye contact, flush with copious amounts of water for 15 minutes and Consult a physician. Refer to material safety data sheet for more specific Procedures and directions. Packaging Available in pail of 20 lt.. Can also be custom packaged.