Groco SSC-1500 Engine Flush Service Adapter The Groco 1-12 Engine Flush Service Adapter adds safety and flexibility to any water system. Simply add the SSC to the top of any seacock to allow for instant emergency bilging pumping or for easy winterization and cooling system flushing. Specifications Hose ID 1-12 Thread NPT 1-12 Overall Length 4.75 How to use Emergency Use - While the engine is running, close the seaock and remove the quick release plug. Excess bilge water will then pumped overboar