Review on 🔧 Jabsco 18598-1000, Macerator Pump Service Kit for 18590 and 18690 by Marc Cahoon

These service kits work well for this purpose. Unfortunately, Jabsco still uses brass bolts instead of stainless steel. The service kit contains only short studs. Do yourself a favor and order two long studs and replace them before they rust and break. The only downside to these pumps is that the impeller doesn't last very long. We use them about once a week for about five minutes and we have to service the pump and replace the impeller about every 12 months.